Collier's encyclopedia :  with bibliography and index / 
William D. Halsey, editorial director ; Bernard Johnston, editor-in-chief. 
 - New York, London :  Macmillan Educational Co., P. F. Collier,  c1990. 
 - 24v. : ill. ; 28 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopedias and dictionaries.