TY  - BOOK
AU  - Ruark A E
AU  - Urey H C
TI  - Atoms,molecules and quanta
U1  - 541.2 
PY  - 1930///
CY  - New york
PB  - Mcgraw-hill
KW  - Atoms
KW  - Molecules
KW  - Physical chemistry
KW  - Quanta
ER  -