000 00318nam a2200133Ia 4500
008 160316s1976 xxu||||| |||| 00| 0 eng d
020 _a
100 _aS P Sen
245 _aNitrogen Assimilation And Crop Productivity
250 _a1
260 _aNEW DELHI
_bASSOCIATED PUB.CO.
_c1976
300 _a313
700 _a
_a
999 _c26993
_d26993