Proceedings on-farm animal research/extension and its economic analysis Hendrik Knipscheer text Morilton Winrock International Institute fo Agricyltural Development 1987 en 116 p.: ill.; 26 cm. Hendrik Knipscheer ECONOMICS -- ANIMAL HUSBANDRY 636.003/WIN/p 240313 20240313094134 INLIS000000000012647 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)