000 00295nam a22000977a 4500
999 _c515577
_d515577
082 _aTNC B7 Sm64
100 _aSmithsonian institution symposium
_921258
245 _aThe quality of man's environment
_cby Smithsonian institution symposium
260 _aMadras
_bHigginbothams
_c1968
300 _a250p.