Natural family planning  a guide to provision of services 
by World health organization. 
 - New Delhi  CBS Publishers and Distrubutors  1991 
 - vi, 82p.; 24cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nursing.
<br/><br/><label>Dewey Class. No.: </label>363.98  / N28N