Orr, W. I. (1972). Radio handbook / (by) William I. Orr (19th ed.). Foulsham.
Chicago Style (17th ed.) CitationOrr, William I. Radio Handbook / (by) William I. Orr. 19th ed. Slough: Foulsham, 1972.
MLA (9th ed.) CitationOrr, William I. Radio Handbook / (by) William I. Orr. 19th ed. Foulsham, 1972.
Warning: These citations may not always be 100% accurate.