000 00470pam a2200181a 44500
008 160408b1977 xxu||||| |||| 00| 0 eng d
082 _a541.224
_bP586c
100 _aPickering, H. S.
245 1 _aTHE COVALENT BOND
260 _aLondon
_bWykeham Publications
_c1977
300 _avii,101
440 _aThe Wykeham Science Series
_v
500 _aBibliography : P. 99
650 _aElectrons
650 _aChemical Bond
964 _gCIRC
997 _aA67661 C
999 _c295299
_d295299