Merkoša sitáhtat
APA-čujuhus (7. p.)
Kippley, J. F., & Kippley, S. (1979). The art of natural family planning. Couple to couple League.
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Chicago-čujuhus (17. p.)
Kippley, John F., juo Sheila Kippley. The Art of Natural Family Planning. Cincinnati: Couple to couple League, 1979.
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MLA-čujuhus (9. p.)
Kippley, John F., juo Sheila Kippley. The Art of Natural Family Planning. Couple to couple League, 1979.
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