TY  - BOOK
AU  - Companion, Audrey L.
TI  -  Chemical bonding
SN  - 0070123799
U1  - 541.396 
PY  - 1979///
CY  - New york
PB  - Mc Graw Hill
KW  - Chemical bonds
KW  - The  Bohr Atom
N1  - Include Index
ER  -