Gottmann, Jean. A geography of Europe. - 4th ed. - New York, Holt, Rinehart and Winston [1969] - xii, 866 p. illus., maps (part col.) 24 cm. ISBN: 0030808154 LCCN: 69020455 LC Class. No.: D907 .G6 1969 / .G6 1969 Dewey Class. No.: 914