000 00495nam a2200169Ia 4500
008 190328s9999||||xx |||||||||||||| ||und||
020 _a0-09-107991-8
040 _aNITIL
_cNITIL
082 _221st
_a614.7
_bW177E
100 _aWalker, Colin
245 0 _aEnvironmental pollution by Chemicals
_cColin Walker
260 _aLondon
_bHutchinson Educational
_c1971
300 _a108p.
440 _aHutchinson biological monographs; 11
650 _aPollution; Pollution prevention
942 _cBKS
999 _c22242
_d22242