A history of ALA policy on intellectual freedom  a supplement to The intellectual freedom manual , ninth edition 
 Intellectual freedom manual. 
compiled by the Office for Intellectual Freedom of the American Library Association; Trina Magi , editor ; Martin Garnar,assistant editor. 
 - Chicago , Illinois  ALA editions  2015. 
 - xi, 256 p.  23cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780838913253 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libraries--Censorship--Handbooks, manuals ,etc.--United States<br/>Intellectual freedom--Handbooks, manuals, ect.--United States