UNIX system V release 4 : user's guide
American Telephone and Telegraph Company.
Englewood Cliffs, N.J. : Prentice-Hall, ©1990.
1 vol. (various pagings) : ilustraciones ; 24 cm.
ISBN: 0139470522
Cabecera de portada: AT&T.
"UNIX Software Operation."
Incluye índice.