TY - BOOK AU - BENT MARTIN (ED). TI - LIVESTOCK PRODUCTIVITY ENHANCERS: AN ECONOMIC ASSESSMENT SN - 0851988008 (HBK) U1 - 636 BEN/LI PY - 1993/// CY - UK PB - CABI KW - GENERAL INTRODUCTION KW - ANALYSIS OF IMMEDIATE ECONOMIC IMPACT KW - FURTHER ECONOMIC IMPACTS ER -