000 00354nam a2200121Ia 4500
008 240112s9999 xx 000 0 und d
082 _aSIS-Q
_b573.4
100 _aSmithsonian Institution Symposium
245 0 _aQuality of man's environment
260 _a Forum Lectures
_bVoice of America
_c1968
650 _aMan and ecology; Life sciences
942 _cBK
999 _c39851
_d39851