APA (7e ed.) Bronvermelding

Keehn, T. B. (1971). Functional education for family life planning: A program plan. World Education.

Chicago (17e ed.) Bronvermelding

Keehn, Thomas B. Functional Education for Family Life Planning: A Program Plan. New York: World Education, 1971.

MLA (8e ed.) Bronvermelding

Keehn, Thomas B. Functional Education for Family Life Planning: A Program Plan. World Education, 1971.