TY  - BOOK
AU  - Tsien,H.S.
TI  - Engineering cybernetics
U1  - 621.8 
PY  - 1954///
CY  - New York
PB  - McGraw-Hill
KW  - Automation
KW  - Servomechanisms
KW  - Automatic control
KW  - Synchros
N1  - Includes index
ER  -