TY  - BOOK
AU  - Brown, Gordon Stanley
AU  - Campbell, Donald Pierce
TI  - Principles of servomechanisms: dynamics and synthesis of closed-loop control systems 
AV  - TJ 213 B7
PY  - 1948///
CY  - New York
PB  - J. Wiley
KW  - Servomecanismos
ER  -