APA
Kippley J. F., . (1986). The effectiveness of natural family planning. Cincinnati, OH: .
Chicago
Kippley John F, . 1986. The effectiveness of natural family planning. Cincinnati, OH: .
Harvard
Kippley J. F., . (1986). The effectiveness of natural family planning. Cincinnati, OH: .
MLA
Kippley John F, . The effectiveness of natural family planning. Cincinnati, OH: . 1986.
