APA (7e ed.) Bronvermelding

Douglass, M. P. (1967). Social studies: From theory to practice in elementary education. Lippincott.

Chicago (17e ed.) Bronvermelding

Douglass, Malcolm P. Social Studies: From Theory to Practice in Elementary Education. Philadelphia: Lippincott, 1967.

MLA (9e ed.) Bronvermelding

Douglass, Malcolm P. Social Studies: From Theory to Practice in Elementary Education. Lippincott, 1967.