TY  - BOOK
AU  - Willardson Robert K Ed.
AU  -  Beer Albert C Ed.
TI  - Semiconductors and semimetals
U1  - C6:212, L5.15 
PY  - 1975///
CY  - New York    
PB  -  Academic press       
KW  - Semiconductor
N1  - Includes bibliography
ER  -