APA (7th ed.) Citation

Watson, H. M. (1951). Understanding radio: A guide to practical operation and theory (2d ed.). McGraw-Hill.

Chicago Style (17th ed.) Citation

Watson, Herbert M. Understanding Radio: A Guide to Practical Operation and Theory. 2d ed. New York: McGraw-Hill, 1951.

MLA (9th ed.) Citation

Watson, Herbert M. Understanding Radio: A Guide to Practical Operation and Theory. 2d ed. McGraw-Hill, 1951.