TY  - BOOK
AU  - Gelder, Erich Reiter, Karl Heinz 
TI  - Siemens:the transistor 
SN  - 81-224-0345-X 
U1  - 621.317 GEI  
PY  - 1991///
CY  - Wiley eastern limited 
PB  - New Delhi 
KW  - ELECTRICAL SCIENCE
ER  -