The Economic of Animal Draft Power in West Africa WILLIAM K. JAEGER text United States of Amerika Westview Press 1986 - eng xiv, 195p.: ill.; 22 cm Mekanisasi Pertanian 631.171 631.171 WIL a 0-8133-7356-5 231106 20231106103321 INLIS000000000000262 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)