The Problem of Fertility :  Proceedings of the conference on fertility held under the auspices of the National Committee on Maternal Health / 
Edited by Earl T. Engle 
 - Princeton :  Princeton University Press,  c1946. 
 - viii, 254 p. :  ill. ;  23 cm. 
<br/><br/>Includes bibliographical references & Index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Fertility--Ovulation
<br/><br/><label>Dewey Class. No.: </label>612.663  / PRO 1946