Biological components of human reproduction studies of their variations in population groups:  report 

 - Geneva :  World Health Organization,  1969. 
 - 41p.:  ill. ;  24cm. 
 - World Health Organization Technical Report Series ;  no.435 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human reproduction.
<br/><br/><label>Dewey Class. No.: </label>616.9