Swan, A. J. <br/><br/>
Data communications protocols / 
A.J. Swan 
 - Manchester :  NCC Publications,  1978 
 - 155 p. :  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>0850122031 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic data processing--Distributed processing