TY  - BOOK
AU  - Fry, William J.
AU  - Henvis, Bertha W.
TI  - DESIGN OF CYRSTAL VIBRATING SYS4TEMS FOR PROJECTORS AND OTHER APPLICATIONS
U1  - 537.2 
PY  - 1948///
CY  - N. Y.
PB  - Dover
KW  - Pyro-And Piezo-Electricity
KW  - Electric Waves
KW  - Crystallography
ER  -