000 00397nam a2200145Ia 4500
008 180712s9999 xx 000 0 und d
020 _a395201861
082 _a577.13
_bYOU
100 _aDay, Gary D...[et al.]
245 _aYOU and the environment: an investigative approach
260 _aBoston
_bHoughton Mifflin
_c1976
300 _axiii, 365p.
650 _aEnvironment science
942 _cS
999 _c48935
_d48935