Natural family planning  A guide to provision of services. 

 - Geneva  World Health Organization  1988 
 - 82p: ill.; 24cm. 
<br/><br/><label>ISBN: </label>9241542411 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birth Control.
<br/><br/><label>Dewey Class. No.: </label>613.94  / W93N