Cita APA (7th ed.)

Hallgren, R. C. (1983). Interface projects for the APPLE II. National Book store.

Cita Chicago (17th ed.)

Hallgren, Richard C. Interface Projects for the APPLE II. Manila: National Book store, 1983.

Cita MLA (9th ed.)

Hallgren, Richard C. Interface Projects for the APPLE II. National Book store, 1983.