Harbottle, H R . <br/><br/>
The Principles of Telecommunications Engineering /  Textual Documents 
H. R Harbottle & B L G Hanman. 
 - 1st ed / 
 - London :  The English Language Book Society ,  1965. 
 - 373p. :  ill. ;  23 cm . 
<br/><br/><label>Subjects--Index Terms: </label>Engineering T/G-Engineering 
<br/><br/><label>Dewey Class. No.: </label>620  / Ha 19 Pr