000
00316nam a2200133Ia 4500
008
220201s1969 xx 000 0 eng d
082
_b
PAC
100
_a
Paculing, C.
245
0
_a
Nature of the chemical bond
250
_a
3
260
_a
New Delhi
_b
Oxford Publishing house
_c
1969
300
_a
644
942
_2
ddc
999
_c
19420
_d
19420