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Pathak, P and Murty, V V N and Pathak, S M (1981) Runoff measurements from small agricultural watersheds. Monograph. ICRISAT, Patancheru, Andhra Pradesh, India.
Sarin, R and Ryan, J G (1981) Economic assessment of improved watershed-based technology options in on-farm experiments. Monograph. International Crops Research Institute for the semi-arid Tropics, Patancheru, Andhra Pradesh, India.
Swindale, L D (1981) A time for rainfed agriculture. Documentation. Coromandel International Limited , Secunderabad, Andhrapradesh.