APA引文

Cooper, M., & Maynard, A. K. (1971). The price of air travel. Institute of Economic Affairs.

Chicago Style (17th ed.) Citation

Cooper, M.H, and Alan Keith Maynard. The Price of Air Travel. [London]: Institute of Economic Affairs, 1971.

MLA引文

Cooper, M.H, and Alan Keith Maynard. The Price of Air Travel. Institute of Economic Affairs, 1971.