Ashok Kumar. (1988). Foodgrains production in India: Impact of techno-enviromental factors. Criterion Press.
Chicago Stili AlıntıAshok Kumar. Foodgrains Production in India: Impact of Techno-enviromental Factors. New Delhi: Criterion Press, 1988.
MLA AlıntıAshok Kumar. Foodgrains Production in India: Impact of Techno-enviromental Factors. Criterion Press, 1988.
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