Iowa State University and CAED text Ames, Iowa The Iowa State University Press 1969 viii, 442 p. : ill ; 23 cm EKONOMI PERTANIAN - AMERIKA UTARA AMERIKA UTARA EKONOMI PERTANIAN PASAR AMERIKA UTARA 63:382 63:382 INLIS000000000004443 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)