00313nam a2200121Ia 4500001000500000005001700005008004100022020001500063082001400078100002300092245005700115260001900172217020261006003611.0120911s9999    xx            000 0 und d  a0201213990  a500.2 LEY  aLeyden, Michael B.  aIntroduction to physical science / Michael B. Leyden  aAddison Wesley