TY  - BOOK
AU  - Heising, Raymond A.
TI  - Quartz Crystals for Electrical Circuits : The Design and Manufacture
PY  - 1947///
CY  - New York : 
PB  - D. Van Nostrand Company, 
KW  - OSCILADORES ELECTROMECANICOS
KW  - CUARZO
ER  -