000 00403nam a22001577a 4500
015 _a551
041 _aENG
100 _cdaniel B.Botkin &edward A.keller
100 _adaniel B.Botkin &edward A.keller
245 _aenviromental studies
260 _aCharles E. Merryl
_bCharles E. Merryl
_c1982
300 _a307
999 _c422
_d422