TY  - BOOK
AU  - Langill,A.W.
TI  - Automatic control systems engineering / 
T2  - Prentice-Hall international series in engineering or the physical sciences
AV  - TJ213 .L28
U1  - 629.8 
PY  - 1965///
CY  - Englewood Cliffs, N.J.
PB  - Prentice-Hall, 
KW  - Automatic control
N1  - Includes bibliographies
ER  -