gistfile1.txt

add_action( 'wp_enqueue_scripts', 'my_pjn_scripts_and_styles');

function my_pjn_scripts_and_styles() {
  if ( is_page( 'some-page-slug' ) ) {
    wp_enqueue_script(
      $handle = 'googlemap',
      $src = "http://maps.googleapis.com/maps/api/js?sensor=true",
      $deps = array(),
      $ver = 'V3',
      $in_footer = true
    );
  }
}