000
00276 a2200121 4500
080
_a
631.452(063)
_b
I 61 P
245
1
_a
Soil fertility evaluation
_b
Proceedings:
260
_a
New Delhi
_c
1972
650
_a
Soil Fertility
100
_a
_d
300
_a
156 p.
901
_a
120205
999
_c
80836
_d
80836