Hershkovitz, Philip <br/><br/>
Titis, New World Monkeys of the Genus Callicebus(Cebidae, Platyrrhini); A Preliminary Taxonomic Review 

 - Chicago, Illinois :  Museum of the natural history,  1990. 
 - 110 paginas ;  ilustraciones ;  25 cm. 
<br/><br/><label>ISBN: </label>00150754