Abler, Ronald. Spatial organization; the geographer's view of the world Ronald Abler, John S. Adams [and] Peter Gould. - Englewood Cliffs, N.J.: Prentice-Hall; c1971[1977] - xix, 222 p. ill., maps. 24 cm. Includes bibliographies. ISBN: 0138240868 Subjects--Topical Terms: Geography. Dewey Class. No.: 910.09 / ABS 1977