APA-viite (7. p.)

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

Chicago-viite (17. p.)

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

MLA-viite (8. p.)

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

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