Cita APA (7a ed.)

Gernsback, H. (1920). The Electrical experimenter. [publisher not identified].

Cita Chicago Style (17a ed.)

Gernsback, Hugo. The Electrical Experimenter. New York: [publisher not identified], 1920.

Cita MLA (8a ed.)

Gernsback, Hugo. The Electrical Experimenter. [publisher not identified], 1920.