The Hymenoptera of costa Rica 
edited by Paul E. Hanson and Ian D. Gauld 
 - Oxford  Oxford University Press  1995 
 - xx, 893 p. : ill. ; 26 cm. 
<br/><br/> At head of title: The Natural History Museum, London. Includes bibliographical references (p. [697]-868) and indexes. Foreword in English and Spanish 
<br/><br/><label>ISBN: </label>9780198549055 
<br/><br/><label>ISSN: </label>95006995 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Hymenoptera - Costa Rica
<br/><br/><label>Dewey Class. No.: </label>595.79097286 HAN