Roper, Clyde F. E.,  1937- <br/><br/>
A catalog of the type-specimens of Recent Cephalopoda in the National Museum of Natural History / 
Clyde F. E. Roper and Michael J. Sweeney 
 - Washington :  Smithsonian Institution Press,  1978 
 - iii, 19 p. ;  26 cm. 
 - Smithsonian contributions to zoology ;  no. 278 .
<br/><br/>Bibliography : p. 18-19 
<br/><br/><label>LCCN: </label>78-606021 
<br/><br/><label>Subjects--Corporate Names: </label><br/>National Museum of Natural History (U.S.)
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cephalopoda--Catalogs and collections<br/>Type specimens (Natural history)<br/>Mollusks--Catalogs and collections