APA-referens (7:e uppl.)

SERVEY, R. E. (1967). Social-studies intruction in the elementary school. Chandler Pub.

Chicago-referens (17:e uppl.)

SERVEY, Richard E. Social-studies Intruction in the Elementary School. San Francisco: Chandler Pub, 1967.

MLA-referens (9:e uppl.)

SERVEY, Richard E. Social-studies Intruction in the Elementary School. Chandler Pub, 1967.