000
00315nam a2200121Ia 4500
008
191031s9999 xx 000 0 und d
100
_a
Singh (Alam) and Sharma (US)
245
0
_a
Current practices in environmental engineering Vol.1
260
_b
Int.BK Traders
260
_c
1984
365
_b
250
942
_c
BK
999
_c
213999
_d
213999