CCITT Plenary Assembly (Red Book) Malaga-Torremolinos, 1984 : Digital Transit Exchanges in Integrated Digital Networks and Mixed Analoque- Digital Networks, Digital Local and Combined Exchanges, Recommendations Q.501-Q.517 : Fascicle / Vol.VI.5
- Geneva : ITU, 1984.
- XV, 132 s.; 30 cm.
9261021816
9261021816