UNIX Time Sharing System PROGRAMMER'S MANUAL: V. 2 By Bell Laboratories 1983

UNIX time-sharing system: UNIX programmer's manual by Bell Laboratories VOL 2

UNIX Paperback Bell Telephone Laboratories Technical Staff

UNIX Time Sharing System PROGRAMMER'S MANUAL: V. 2 By Bell Laboratories 1983

UNIX Programmer's Manual: Volume 1 Bell Telephone Laboratories (1983, PB)

Unix Programmer's Manual Reference Guide 1984 UC Berkeley

UNIX Network Programming Volume 1 Networking API’s : Sockets And XTI 2nd Edition

UNIX time-sharing system: UNIX programmer's manual by Bell Telephone Laboratori,