Zelinsky Wilbur and others Ed. Geography and a crowding world A symposium on population pressure upon physical and social resources in the developing lands - New York Oxford University Press U S A 1970 - "xv,601p." cm. Bib at the end of each chapter; Glossary p. 589-92 Standard No.: 135457 Source: Textbook Subjects--Topical Terms: Rural Geography Dewey Class. No.: "U45.1(X).N7, L0"