Ellis, David O. <br/><br/>
Systems philosophy / 
[by] David O. Ellis [and] Fred J. Ludwing. 
 - Englewood Cliffs, N.J :  Prentice-Hall,  1962. 
 - xi, 387 p. :  illus. ;  24 cm. 
 - Prentice-Hall space technology series. .
<br/><br/>Bibliography : p. 377. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Systems engineering.
<br/><br/><label>Dewey Class. No.: </label>629 ELL