000
00310nam a2200133Ia 4500
008
160316s1978 xxu||||| |||| 00| 0 eng d
020
_a
100
_a
Sen, S.P.
245
_a
Nitrogen Assimilation And Crop Production
250
_a
1
260
_a
NEW DELHI
_b
ASSOCIATED
_c
1978
300
_a
313
700
_a
_a
999
_c
23190
_d
23190