00322nam a2200109Ia 4500082001200000100001700012245007000029300001600099490001400115490007800129500000500207  a338.1b  aMalik, A. K.  aStudy on the estimation of the yield of wheat by sampling, 1945b  app. 219-225  vAug. 1945  aReprinted from the Indian Journal of agricultural science, vol.15, no.iv   a