Cita APA

(1981). Keyboard. [Cupertino, Calif.]: [GPI Publications].

Citación estilo Chicago

Keyboard. [Cupertino, Calif.]: [GPI Publications], 1981.

Cita MLA

Keyboard. [Cupertino, Calif.]: [GPI Publications], 1981.

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