Russell, Dale A. <br/><br/>
Systematics and morphology of American mosasaurs (Reptilia, Sauria) /    
by D. A. Russell 
 - New Haven,     1967 
 - vii, 240 p. :    ill. ;    26 cm. 
 - Yale University. Peabody Museum of Natural History. Bulletin ;   23 .
<br/><br/>Includes bibliographical references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mosasauridae----United States--Cretaceous--<br/>Paleontology ----United States--Cretaceous--<br/>Paleontology ----United States--Cretaceous--
<br/><br/><label>Dewey Class. No.: </label>568.11 RUS