000
00263nam a2200109Ia 4500
008
220201s1979 xx 000 0 eng d
100
_a
Chanlet emil,T
245
0
_a
Enviromental protection
260
_b
Mcgraw hill kogakusha
_c
1979
300
_a
585
942
_2
ddc
999
_c
83491
_d
83491