Computing with a Laptop for the Older Generation By R. A. Penfold

Easy PC Upgrading, Penfold, R. A.

Vintage Book - Computing - UNIX For Dummies - IDG Books - Young / Levine

Boost Your PC's Performance By R. A. Penfold

Practical Midi Handbook by R. A. Penfold Paperback Book The Fast Free Shipping

Music Projects (Maplin Series) by Penfold, R. A. Paperback / softback Book The

Practical Electronic Building Blocks Book 2 by R.A. Penfold Paperback - RARE

Getting the Most from Your Multimeter (BP), R.A. Penfold, Used(Paperback, 1988)