1997 Britannica book of the year / edited by David Calhoun. - Chicago, ILL. : Encyclopaedia Britannica, c1997. - 928 p. : p., illus. (some col.), maps, ports. ; 29 cm. Includes index. Includes "1997 Britannica world data". ISBN: 085229655X ISSN: 0068-1156 LCCN: 38012082 Subjects--Topical Terms: Encyclopedias and dictionaries.