Signal Training. (All Arms) Pamphlet no. 5. Signal Procedure. Part 1. Procedure for Radio Telephony. 1943 - Engeland Voorschrift Signal Training. Pamphlet no.28. Volume III. Wireless Station Maintenance and Fault Finding and Associated Vehicle Suppression Systems. WO 7568 Signal Training. Volume II. Part I. Electricity and Magnetism. - Engeland Voorschrift
