Understanding Computer Science-vol. 2 by Roger S. Walker

Roger Penrose The Emperor's New Mind Penguin Books Paperback Computers Physics

Understanding Cats: Their History, Nature, and Behavior by Tabor, Roger HB DJ

An Intelligent Person's Guide to Modern Culture - Scruton, Roger

Roger's Version by John Updike

How To Play Piano: A New Easy To Understand Way To ... by Evans, Roger Paperback

Wales (Walker's Companion), Thomas, Roger, Used; Good Book

Understanding Cat Behaviour-Roger Tabor