000
002740000a22001090004500
245
_a
Current practices in environmental engineering
100
_a
Singh, Alam, ed.
260
_a
Delhi
_b
International Book Traders
_c
1984
080
_a
628
_b
S5
041
_a
EN
942
_c
BK
999
_c
118115
_d
118115