The new encyclopaedia britannica macropaedia ready reference and index / [Book] : University of chicago. - 15th ed. - Chicago : William Benton, 1979. - 1026p. : ill. (some col.), maps (some col.) ; 29 cm. - 6 . All. ISBN: 0852293399 Subjects--Topical Terms: Encyclopedias and dictionaries. Dewey Class. No.: 030