C Programming for UNIX by John J. Valley (1992, Hardcover)

UNIX For Dummies - Paperback, by Levine John R.; Young Margaret - Acceptable

Unix for Programmers and Users: A Complete Guide - Paperback - ACCEPTABLE

Unix Programmer's Reference (First Printing)

UNIX For Dummies Quick Reference 4e by Levine Young, Margaret; Levine, John R.

Unix System V Streams Programmer's Guide - Paperback, by AT & T - Acceptable

Unix System V Streams Programmer's Guide - Paperback, by AT & T - Acceptable n

Introduction to Unix and Linux Paperback John Muster