00378nam a2200121Ia 4500100004400000245013500044260003100179300000800210490002300218490000500241500000500246700000500251  aNational Sample Survey Directorate of -  aReport on the surveys for assessment of additional yield from land reclaimed by Central Tractor Organisation (1950-51 to 1954-55b  aNew DelhibThe Auth.c1962  a6p.  aSeries v M, no. 1  a  a  a