000
00293nam a2200121Ia 4500
008
180721s9999 xx 000 0 und d
100
_a
Sen S.P
245
0
_a
"Biofertilizers, Potentials and problems"
260
_b
Academic press -New york
260
_c
0
365
_b
250.00
942
_c
BK
999
_c
152550
_d
152550