CREW, F A E <br/><br/>
Biological factors affecting family size.  [electronic resource] 

 -  British journal of social medicine  Jan 1949 
 - 1-9 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0366-0842 
<br/><br/><label>Standard No.: </label>10.1136/jech.3.1.1  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biological Factors<br/>Family Characteristics<br/>Humans