000 00381nam a2200145Ia 4500
008 230917s9999||||xx |||||||||||||| ||und||
040 _e119382
_aMAIN
041 _aEnglish
082 _a541.224 P418P
100 _aThe Open University
245 0 _aPeriodic table and chemical bonding
260 _aGreat Britain
_bThe Open University
_c1977
300 _a48p. p.
942 _cBK
999 _c188500
_d188500