R Penfold

3 books • 1 series

Sep 30, 2011
Cover of Electronics Build & Learn

Electronics Build & Learn

May 28, 2005
Cover of Simple Guide:Internet; Searching the Web; PCs; Office 2000; Windows 98; Using Spreadsheets; Internet Research and Flash 5

Simple Guide:Internet; Searching the Web; PCs; Office 2000; Windows 98; Using Spreadsheets; Internet Research and Flash 5

Jul 4, 2001
Cover of A Simple Guide to Using Spreadsheets

A Simple Guide to Using Spreadsheets (Simple Guides)