Harman,David, & Keehn, T. B. (1973). Functional education for family life planning, II: Program Design. World Education.
Chicago-viite (17. p.)Harman,David, ja Thomas B. Keehn. Functional Education for Family Life Planning, II: Program Design. New York: World Education, 1973.
MLA-viite (8. p.)Harman,David, ja Thomas B. Keehn. Functional Education for Family Life Planning, II: Program Design. World Education, 1973.
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