na INLIS000000000000094 20200427083804 0010-0420000009 From Agronomic Data to Farmer Recommendations : An Economics Training Manual CIMMYT Economics Program Edisi Revisi 79 ; v, 79 hlm.; 25.5 cm. Mexico : CIMMYT Economics Program, 1988 630 630 CIM f 968-6127-18-6 Ekonomi 3608/Hd/2012