UNIX system V, release 4 : user's reference manual
American Telephone and Telegraph Company.
Englewood Cliffs, N.J. : Prentice-Hall, ©1990.
1 vol. (various pagings) : ilustraciones ; 24 cm.
ISBN: 0139470379
Cabecera de portada: AT&T.
"Unix software operation."
Incluye índice.