TY  - BOOK
AU  -  Welbourn,Donald B.
TI  -  The essentials of control theory for mechanical engineers / 
U1  -  629.8   22
PY  - 1963///
CY  -  London : 
PB  -  E. Arnold, 
KW  -  Automatic control
N1  -  Includes bibliographical references and index
ER  -