X.25 explained : protocols for packet switching networks /
by R.J. Deasington.
- 2nd ed.
- Chichester, West Sussex : New York : E. Horwood ; Halsted Press, 1986.
- 131 p. ; 25 cm.
- Ellis Horwood books in computing science. Series in computer communications and networking .
- Ellis Horwood series in computers and their applications .
- Computers and their applications. .