APA ציטוט

Stubbs, P. C. (1980). Transports economics. London: George Allen & Unwin.

Trích dẫn kiểu Chicago

Stubbs, P. C. Transports Economics. London: George Allen & Unwin, 1980.

ציטוט MLA

Stubbs, P. C. Transports Economics. London: George Allen & Unwin, 1980.