gistfile1.txt

        function append(prop, promise) {
          return function(book) {
            promise.then(function(data) {
              book[prop] = data;
            })
          }
        };

        var requests = [];
        var book = bookQuery(isbnQuery(code))
        requests[0] = book.then(append('works', worksQuery))
        requests[1] = book.then(append('authors', authorsQuery))
        return $q.all(requests);