Principles of radio,
by Keith Henney ...
APA Citation
Henney, K. (1934). Principles of radio. 2d ed. New York: J. Wiley & sons, inc.
MLA Citation
Henney, Keith, 1896-. Principles of Radio. 2d ed. New York: J. Wiley & sons, inc, 1934.
Warning: These citations may not always be complete (especially for serials).