000
002660000a22001210004500
245
_a
Electrons and chemical bonding
100
_a
Gray, H.B.
260
_a
New York
_b
W.A. Benjamin
_c
1965
300
_a
223 p.
080
_a
541
_b
G7
041
_a
EN
942
_c
BK
999
_c
52058
_d
52058