Black, Harold S.,  1898- <br/><br/>
Modulation theory / 
Harold S. Black. 
 - New York :  Van Nostrand,  c1953[ printed 1966]. 
 - xi, 363 p. :  illus. ;  24 cm. 
 - Bell Telephone Laboratories series .
<br/><br/>Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Modulation theory.<br/>Telecommunication.
<br/><br/><label>Dewey Class. No.: </label>621.384152  / BLM 1966