000 003180000a22001450004500
245 _aChemical bonding
100 _aAgrawal, O.P.
250 _a2nd ed.
260 _aDelhi
_bDhanpat Rai & Sons
_c1973
300 _a176p.
440 _aix, 176p. : ill.
080 _a541.57
_bA4
041 _aEN
942 _cBK
999 _c101775
_d101775