Johns P B <br/><br/>
Communications systems analysis 

 - London  Butterworths         1972 
 - 207p. illus  cm. 
<br/><br/> Appendix p190-202 
<br/><br/><label>Standard No.: </label>135,253 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECONOMICS
<br/><br/><label>Dewey Class. No.: </label>X4:8M:(B), L2