gistfile1.diff

diff --git a/django/db/models/fields/related.py b/django/db/models/fields/related.py
index 8024981..bcaee9c 100644
--- a/django/db/models/fields/related.py
+++ b/django/db/models/fields/related.py
@@ -441,7 +441,7 @@ class ForeignRelatedObjectsDescriptor(object):
             def create(self, **kwargs):
                 kwargs[rel_field.name] = self.instance
                 db = router.db_for_write(self.model, instance=self.instance)
-                return super(RelatedManager, self.db_manager(db)).create(**kwargs)
+                return self.db_manager(db).get_queryset().create(**kwargs)
             create.alters_data = True
 
             def get_or_create(self, **kwargs):
@@ -449,7 +449,7 @@ class ForeignRelatedObjectsDescriptor(object):
                 # ForeignRelatedObjectsDescriptor knows about.
                 kwargs[rel_field.name] = self.instance
                 db = router.db_for_write(self.model, instance=self.instance)
-                return super(RelatedManager, self.db_manager(db)).get_or_create(**kwargs)
+                return self.db_manager(db).get_queryset().get_or_create(**kwargs)
             get_or_create.alters_data = True
 
             # remove() and clear() are only provided if the ForeignKey can have a value of null.
@@ -593,15 +593,14 @@ def create_many_related_manager(superclass, rel):
                 opts = self.through._meta
                 raise AttributeError("Cannot use create() on a ManyToManyField which specifies an intermediary model. Use %s.%s's Manager instead." % (opts.app_label, opts.object_name))
             db = router.db_for_write(self.instance.__class__, instance=self.instance)
-            new_obj = super(ManyRelatedManager, self.db_manager(db)).create(**kwargs)
+            new_obj = self.db_manager(db).get_queryset().create(**kwargs)
             self.add(new_obj)
             return new_obj
         create.alters_data = True
 
         def get_or_create(self, **kwargs):
             db = router.db_for_write(self.instance.__class__, instance=self.instance)
-            obj, created = \
-                super(ManyRelatedManager, self.db_manager(db)).get_or_create(**kwargs)
+            obj, created = self.db_manager(db).get_queryset().get_or_create(**kwargs)
             # We only need to add() if created because if we got an object back
             # from get() then the relationship already exists.
             if created:
diff --git a/django/db/models/manager.py b/django/db/models/manager.py
index 457fc22..5009a26 100644
--- a/django/db/models/manager.py
+++ b/django/db/models/manager.py
@@ -136,12 +136,6 @@ class Manager(six.with_metaclass(RenameManagerMethods)):
     def all(self):
         return self.get_queryset()
 
-    def get_or_create(self, **kwargs):
-        return self.get_queryset().get_or_create(**kwargs)
-
-    def create(self, **kwargs):
-        return self.get_queryset().create(**kwargs)
-
     def _insert(self, objs, fields, **kwargs):
         return insert_query(self.model, objs, fields, **kwargs)
 
diff --git a/tests/multiple_database/models.py b/tests/multiple_database/models.py
index e464386..2058a81 100644
--- a/tests/multiple_database/models.py
+++ b/tests/multiple_database/models.py
@@ -42,11 +42,11 @@ class Person(models.Model):
 class BookManager(models.Manager):
     def create(self, *args, **kwargs):
         kwargs.pop('extra_arg', None)
-        return super(BookManager, self).create(*args, **kwargs)
+        return self.get_queryset().create(*args, **kwargs)
 
     def get_or_create(self, *args, **kwargs):
         kwargs.pop('extra_arg', None)
-        return super(BookManager, self).get_or_create(*args, **kwargs)
+        return self.get_queryset().get_or_create(*args, **kwargs)
 
 @python_2_unicode_compatible
 class Book(models.Model):