00788cam a2200229 4500 sa 68014467 DLC 20260227112632.0 700225s1967 pk a 00000 eng sa 68014467 //r85 PL480:EP-E-463 HD2075.5.Z9 C65 338.1/09549/2 Rahman, Mahmoodur. Costs and returns; economics of winter irrigated crops in Comilla, 1965-66. Comilla, Pakistan Academy for Rural Development [1967] iv, 132 p. illus. 25 cm. 3.50 Irrigation farming Economic aspects Pakistan Comilla (Thana) Irrigation farming Pakistan Comilla (Thana) Costs. Crops Economic aspects Pakistan Comilla (Thana) 85810 85810