Roy, Ewell Paul. Cooperatives: today and tomorrow. - Danville, Ill. Interstate Printers & Publishers 1964 - 612 p. illus., maps, ports. 920720 Includes bibliographies. LCCN: evn00000541 Subjects--Topical Terms: Cooperation--United States. LC Class. No.: HD3444 / .R6 1964 Dewey Class. No.: 334/.0973