003210000a22001330004500060000800000082001600008100001900024100001600043245004400059260003400103260000900137300000800146650003300154  a100  a630.685 TAN  aDhondyal,  S P  aTandon, R K  aPrinciples & methods of farm management  aIndia, Achal Prakashan Mandir  c1957  a568  aAgriculture/ Farm Management