APA (7th ed.) Citation

Bucher, E. E. (1919). Vacuum tubes in wireless communication: A practical text book for operators and experimenters. Wireless Press.

Chicago Style (17th ed.) Citation

Bucher, Elmer Eustice. Vacuum Tubes in Wireless Communication: A Practical Text Book for Operators and Experimenters. New York: Wireless Press, 1919.

MLA (9th ed.) Citation

Bucher, Elmer Eustice. Vacuum Tubes in Wireless Communication: A Practical Text Book for Operators and Experimenters. Wireless Press, 1919.