00355nam a2200121Ia 4500008004100000082003400041100002100075245004500096260003800141300001300179600001400192650002700206140224s9999 xx 000 0 und d a631.524.8' 586(082.2) L5-L5;1 aGupta, U.S., ed. aPhysiological aspects of dryland farming aNew DelhibOxford and IBHcc 1975 axv,391p. aU.S.Gupta aDry farming-physiology