000 00567nam0a22001810004500
005 20170210192221.0
020 _a0669937657
050 0 0 _aPE 1119
_bG87D 1981
100 1 _aGuth, Hans Paul
_972398
245 1 0 _aDiscovering your world
250 _aพิมพ์ครั้งที่ 1
260 _aLexington, MA:
_bD.C. Heath and Company,
_c1981
300 _axii, 626 P.,ill (some col) : 24 cm
500 _aIncludes index
650 0 _aREADERS
_947839
942 _cGEN
999 _c69533