Παραπομπή APA

Cooper, M. H., Maynard, A. K., & Institute of Economic Affairs (Great Britain). (1971). The price of air travel. Westminster: The Institute of Economic Affairs.

Παραπομπή Chicago Style

Cooper, Michael H., Alan K. Maynard, and Institute of Economic Affairs (Great Britain). The Price of Air Travel. Westminster: The Institute of Economic Affairs, 1971.

Παραπομπή MLA

Cooper, Michael H., Alan K. Maynard, and Institute of Economic Affairs (Great Britain). The Price of Air Travel. Westminster: The Institute of Economic Affairs, 1971.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.