VI Reference Card - Vintage

RS-232 Card - Serial Communications Reference - Vintage

Motorola UDS V.3229 Modem Quick Reference Card AT Commands ASCII Table Specs

Vintage ACEWriter II Editing Commands Keyboard Reference Card Word Processor

Unix World Magazine August 1985

Linux Commands Mouse Pad | Shortcuts Cheat Sheet to Kali/Red/Hat/Ubuntu/OpenS...

Korn Shell Reference '91 + UNIX System V Command Summary '87 Vintage UNIX Cards

Introducing the Unix System Henry McGilton Rachel Morgan 1983 Paperback