Brian Eric and Jaisson Marie <br/><br/>
The descent of human sex ratio at birth 
Eric Brian and Maria Jaisson 
 - Dordrecht  Springer  2007 
 - xix, p.225.:ill.  Hbk 
<br/><br/><label>ISBN: </label>9781402060359 
<br/><br/><label>LC Class. No.: </label>HQ 1237. B7  / 2007