APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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