Crystal , David . Cambridge paperback encyclopedia [Reference /] edited by David Crystal. - Cambridge [England] ; New York, NY : Cambridge University Press, 1993. - vi, 965 p. : ill., maps ; 24 cm. Includes index. All age. ISBN: 0521437628 LCCN: 93001180 Subjects--Topical Terms: Encyclopedias and dictionaries. LC Class. No.: AE5 / .C36 1993 Dewey Class. No.: 032 National Library of Medicine Call No.: / CC