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Yadav R.L., Prasad K., Dwivedi B.S., Tomar R.K., Singh A.K. Cropping systems. 50 Years of Natural Resource Management Research 1998, 413-446. ICAR, New Delhi. G.B. Singh, B.R. Sharma (Eds.).
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(1998)
50 Years of Natural Resource Management Research
, pp. 413-446
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Yadav, R.L.1
Prasad, K.2
Dwivedi, B.S.3
Tomar, R.K.4
Singh, A.K.5
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