TY  - BOOK
AU  - Urch,David Selway
TI  - Orbitals and symmetry / 
T2  - Penguin library of physical sciences
U1  - 539.721 
PY  - 1970///
CY  - Harmondsworth : 
PB  - Penguin Books, 
KW  - Orbitais moleculares
KW  - Simetria (Física)
ER  -