000 00258nam a2200109Ia 4500
008 180604s9999 xx 000 0 und d
050 _a628 L669
100 _a"Liptak, Bela "
245 0 _aEnvironmental Engineers'
260 _c1974
942 _2lcc
_cBK
_kCirc.
999 _c22853
_d22853