The World book encyclopedia volume 18 : So-Sz / - 447-860 page : illus. (part col.), images, figures, maps ; 26 cm. Includes bibliographies. ISBN: 0716600749 Subjects--Topical Terms: Encyclopedias and dictionaries. LC Class. No.: AE5 / .W55 1972 Dewey Class. No.: 031 / W893