Hellman, Hal <br/><br/>
Controller guidance systems 

 - England  W.foulsham  1967 
 - 224p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Control engineering<br/>Control system<br/>Engineering
<br/><br/><label>Dewey Class. No.: </label>629.8  / HEL