TY  - BOOK
AU  - Cramer, Christopher J.,
TI  - Essentials of computational chemistry:  : theories and models 
SN  - 0470091819
PY  - 2004///
CY  - England
PB  - John Wiley & Sons
UR  - http://opac.dbit.in/cgi-bin/koha/opac-retrieve-file.pl?id=b6a38a0d66f25e7dbc10a986a3c22a1c
ER  -