Eisenstein, N <br/><br/>
Twinning in the new world monkey, Cebus apella.  [electronic resource] 

 -  Journal of mammalogy  May 1972 
 - 406-7 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0022-2372 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Animals<br/>Female<br/>Haplorhini--physiology<br/>Pregnancy<br/>Twins