na INLIS000000000004443 0010-0421000008 A North American commonn market Iowa State University and CAED Ames, Iowa The Iowa State University Press 1969 viii, 442 p. : ill ; 23 cm 63:382 63:382 EKONOMI PERTANIAN - AMERIKA UTARA AMERIKA UTARA EKONOMI PERTANIAN PASAR AMERIKA UTARA. 1717 1717 1717