John. Kippley, Sheila. <br/><br/>
The Art of Natural Family Planning / 
by John and Sheila Kippley ; foreward [sic] by Konald A. Prem. 
 - Cincinnati, OH. :  The Couple to Couple League International,  c1975. 
 - xix, 214 p. 
<br/><br/>Bibliography: p. 199-214. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Natural family planning.
<br/><br/><label>Dewey Class. No.: </label>241.63  / JOH