Cita APA (7a ed.)

Gilbert, G. A. (1945). Air traffic control. Ziff-Davis Publishing Company.

Cita Chicago Style (17a ed.)

Gilbert, Glen A. Air Traffic Control. Chicago: Ziff-Davis Publishing Company, 1945.

Cita MLA (8a ed.)

Gilbert, Glen A. Air Traffic Control. Ziff-Davis Publishing Company, 1945.