Holsinger, John R. <br/><br/>
Systematics of the subterranean Amphipod Genus Stygobromus (crangonyctidae) / 
John R. Holsinger. 
 - City of Washington :  Smithsonian Institution Press,  1974. 
 - v. :  ill. ;  27 cm. 
 - Smithsonian contributions to zoology ;  no. 160 & 266. .
<br/><br/>Contents: pt.1. Species of the Western United States - pt.2. Species of the Eastern United States. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stygobromus--Classification.<br/>Crustacea--Classification.