Cita APA (7a ed.)

Owen, W. D. (1919). Guide to the study of the ionic valve, showing its development and application to wireless telegraphuy and telephony (2nd imp.). Sir Isaac Pitman & Sons.

Cita Chicago Style (17a ed.)

Owen, William D. Guide to the Study of the Ionic Valve, Showing Its Development and Application to Wireless Telegraphuy and Telephony. 2nd imp. London [etc.]: Sir Isaac Pitman & Sons, 1919.

Cita MLA (9a ed.)

Owen, William D. Guide to the Study of the Ionic Valve, Showing Its Development and Application to Wireless Telegraphuy and Telephony. 2nd imp. Sir Isaac Pitman & Sons, 1919.