Keehn, T. B. (1971). Functional education for family life planning: A program plan. World Education.
Cita Chicago (17th ed.)Keehn, Thomas B. Functional Education for Family Life Planning: A Program Plan. New York: World Education, 1971.
Cita MLA (8th ed.)Keehn, Thomas B. Functional Education for Family Life Planning: A Program Plan. World Education, 1971.
Atenció: Aquestes cites poden no estar 100% correctes.