Cita APA (7th ed.)

Hay, A. (1973). Transport for the space economy: A geographical study. Macmillan.

Cita Chicago (17th ed.)

Hay, Alan. Transport for the Space Economy: A Geographical Study. London: Macmillan, 1973.

Cita MLA (9th ed.)

Hay, Alan. Transport for the Space Economy: A Geographical Study. Macmillan, 1973.