CCITT Plenary Assembly (Red Book) Malaga-Torremolinos, 1984 :   Data Communication Networks Interfaces, Recommendations X.20-X.32 : Fascicle /   Vol.VIII.3 

 - Geneva :   ITU,   1984. 
 - VIII, 358 s.;   30 cm. 
<br/><br/><label>ISBN: </label>9261023215