The Longman encyclopedia /  editor-in-chief: Asa Briggs. 

 - Burnt Mill, Harlow, Eng. :  Longman,  1989. 
 - x, 1178 p. :  ill., maps (some col.) 
<br/><br/><label>ISBN: </label>0582916208 
<br/><br/><label>LCCN: </label>91065191     
<br/><br/><label>Subjects--Topical Terms: </label><br/>Encyclopaedias in English.