American reference books annual 1990 / 
Edited by Bohdan S. Wynar, Anna Grace Patterson and D. A. Rothschild. 
 - Colorado :  Libraries unlimited,  c 1990. 
 - xxvi, 852 p. ;  26 cm. 
<br/><br/> Includes index. 
<br/><br/>V. 21-- ; 
<br/><br/>400   400 
<br/><br/><label>ISBN: </label>0-87287-825-2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference books--Bibliography.
<br/><br/><label>Dewey Class. No.: </label>015.73 / A35