00815nam a22002297a 4500 20181210003154.0 180424m19621958it a b i000 0 eng 60023680 (OCoLC)5149441 BD-DhBPA BD-DhBPA 631 YAM 1962 Yang, Wei, 1907- 5507 Methods of farm management investigations for improving farm productivity / Wei Yang. Rome : Food and Agriculture Organization of the United Nations, 1962. ix, 228 p. : diagrs., tables. ; 23 cm. FAO agricultural development paper, no. 64 Bibliography: p. 225-228. Newaz Farm management Research. 50620 FAO agricultural development paper ; no. 64. 11869 ddc BK 17272 17272 0 ddc 0 0 BPATC BPATC GEN 2018-04-12 0 631 YAM 1962 30045 2018-04-12 00:00:00 2018-04-12 BK Newaz