na INLIS000000000002725 Ind 0010-1118002725 Agricultural engineering in development : guidelines for mechanization systems and machinery rehabilitation programmes FOOD AND AGRICULTURE ORGANIZATION Food and Agriculture Organization Rome FAO 1990 63 p. : ill. ; 29 cm.-- 63 p. : ill. ; 29 cm.-- 92-5-103024-3 631.3 ENGINEERING AGRICULTURE 1485/FAO/91