ALA world encyclopedia of library and information services / 
 World encyclopedia of library and information services 
[Robert Wedgeworth, editor]. 
 - Chicago :  American Library Association,  1980. 
 - xxii, 601 p. :  ill. ;  29 cm. 
<br/><br/>Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0838903053 9780838903056 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library science--Encyclopedias.<br/>Information science--Encyclopedias.<br/>Ciencia de la información --Enciclopedias<br/>Bibliotecología --Enciclopedias
<br/><br/><label>LC Class. No.: </label>R Z 1006  / A512 1980 
<br/><br/><label>Dewey Class. No.: </label>020.3