Pal, Mahendra .
Proceedings of the National Symposium on Cropping Systems / MAHENDRA PAL. - New Delhi : Indian Council of Agricultural Research , 1986. - 481p ; .
Cropping Systems
631.5 / PAL
Proceedings of the National Symposium on Cropping Systems / MAHENDRA PAL. - New Delhi : Indian Council of Agricultural Research , 1986. - 481p ; .
Cropping Systems
631.5 / PAL