Bell System Technical Journal (Journal Devoted To Scientific And Engineering Aspects Of Electrical Communication) 

 - New York  American Telephone And Telegraph Co.  1971 
 - Nos. 7-10 
<br/><br/><label>Subjects--Topical Terms: </label><br/>D66m73:N22
<br/><br/><label>Dewey Class. No.: </label>D66m73:N22  / F2.5