Penfold, R. A.

A concise introduction to Word perfect Penfold, R. A. 1989 A CONCISE INTRODUCTION TO WORDPERFECT, SUPPORTS UPTO VERSIONS 5.1 PENFOLD, R. A 1992 A concise introduction to wordPerfect Penfold, R. A. 1992 Audio amplifier Construction Penfold, R. A. 1983 BEGINNERS GUIDE TO BUILDING ELECTRONIC PROJECTS PENFOLD, R. A 1977 Electronic Hobbyists Data Book Penfold R A 2008 Electronics Build & Learn.2nd ed Penfold, R.A. 1993 How to build advance short wave recievers Penfold, R. A. 1977 How to Build Advanced Short Wave Receivers Penfold, R A Year not listed How to design and make your own PCBs Penfold, R. A. 1983 How to get your electronic projects working Penfold, R. A. 1982 Multi-circuit board projects Penfold, R. A. 1982 popular electronic circuits book 1 Penfold, R A 1980 Solid state short wave receivers for beginners Penfold, R. A. 1976 VMOS PROJECTS PENFOLD, R. A 1981