Sharma, R. K. Factors affecting fertilizer use in the hill region of uttar pradesh / R. K. Sharma - Delhi : Agricultural Economics Research Centre (AERC) , 1980 - 58p. : ill. ; 30 cm. - AERC Research Study No. 80/2 . Includes bibliographical references. Subjects--Topical Terms: Fertilizer use--India Gov. Doc. Class. No.: IN Del.U AERC RS-80-2