000 00461nam a2200169 4500
001 18002/75
005 20130515014804.0
008 111112s9999 xx 000 0 und d
082 0 0 _a537. nuf
100 1 _a"0, . "
_93953
245 1 0 _a"electricity, electrons, and energy levels:
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_c .. "
250 _a1 ed.
260 _ausa :
_bnufield advanced science
_c1971.
300 _a"vii, 136p.;
_c21 cm."
490 0 _ateachers guide unit 2
942 _2lcc
_cBK
999 _c27138
_d27138