APA (7th ed.) Citation

Gernsback S & S.Gernsback, A. (1921). Wireless course. Lesson number one.

Chicago Style (17th ed.) Citation

Gernsback S and A.Lescarboura S.Gernsback. Wireless Course. N: Lesson number one, 1921.

MLA (8th ed.) Citation

Gernsback S and A.Lescarboura S.Gernsback. Wireless Course. Lesson number one, 1921.

Warning: These citations may not always be 100% accurate.