Cheng, H <br/><br/>
On sex ratios at birth and in childhood.  [electronic resource] 

 -  China population today  Aug 1997 
 - 25 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Asia<br/>China<br/>Culture<br/>Demography<br/>Developing Countries<br/>Ethnicity<br/>Asia, Eastern<br/>Population<br/>Population Characteristics<br/>Sex Distribution<br/>Sex Factors<br/>Sex Ratio