Morphology and relationships of apternodus and other extinct, zalambdodont, placental mammals / 
Robert J. Asher ... [et al.]. 
 -- New York :   American Museum of Natural History,   2002 
 - 117 p.  il. -- 
 (Bulletin of the American Museum of Natural History, ISSN 0003-0090  ; 273).
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mamiferos placentados
<br/><br/><label>Universal Decimal Class. No.: </label>599.3/.8