R.E.G.

Radio Amateurs' Question and Answer Reference Manual

By Petri, R.E.G.

Mercantile Law

By Ranking, D.F.de l'Hoste, Spicer, E.E., Perrins, R.E.G., Stuart, P.R.O.

Spicer and Pegler's Book-keeping and Accounts

By Spicer, E.E., Pegler, Ernest Charles, Bigg, Walter William, Perrins, R.E.G.