Hard covered book titled RADIO OPERATING QUESTIONS AND ANSWERS by J.L. Hornung, Alexander McKenzie, 13th Edition, 1964. 598 pages. Topics include: Radio Laws, Regulations and Operating Practices, General Theory, Transmitters, Receivers, Power Supplies, Batteries, Motors, Motor-Generators, Indicating Instruments, Special Endorsements and Appendix. This book is in VG condition, pages intact, and the binding is tight. Minor amount of soiling on outer page edges.