APA-referens (7:e uppl.)

Association for Supervision and Curriculum Development. Committee on the Three R's in the Elementary School. (1952). The three R's in the elementary school. s. n.

Chicago-referens (17:e uppl.)

Association for Supervision and Curriculum Development. Committee on the Three R's in the Elementary School. The Three R's in the Elementary School. Washington: s. n, 1952.

MLA-referens (9:e uppl.)

Association for Supervision and Curriculum Development. Committee on the Three R's in the Elementary School. The Three R's in the Elementary School. s. n, 1952.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.