Cita APA (7th ed.)

Bowen, J. (2010). The economic geography of air transportation: Space, time, and the freedom of the sky. Routledge.

Cita Chicago (17th ed.)

Bowen, John. The Economic Geography of Air Transportation: Space, Time, and the Freedom of the Sky. London: Routledge, 2010.

Cita MLA (9th ed.)

Bowen, John. The Economic Geography of Air Transportation: Space, Time, and the Freedom of the Sky. Routledge, 2010.