00374nam a2200109Ia 4500082002200000100004200022245011000064260003000174300002000204500000500224700003500229  a309.163bSi617.DA  aSingh, Jasbir and Sharma, Vijay Kumar  aDeterminants of agricultural productivity; a sample study of operational holdings for land use planningb  aKurukshetrabVishalc1986  avi, 508p. Index  a  aSharma, Vijay Kumar ; jt.auth.