Tcl/Tk for Programmers: With Solved Exercises that Work with Unix and Windows by

Unix Programmer's Manual Reference Guide 1984 UC Berkeley

Tcl/Tk for Programmers – With Solved Exercises that Work with Unix & Windows

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

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

The Linux Programming Interface: A Linux and UNIX System Programming Handbook HC

Unix Programmer's Manual Reference Guide 1984 UC Berkeley 1st Print Software Vtg

Tcl/Tk for Programmers - 9780818685156