Murphy, G. J. (1978). Transport and distribution (2d ed.). Business Books.
Cita Chicago (17th ed.)Murphy, George John. Transport and Distribution. 2d ed. London: Business Books, 1978.
Cita MLA (8th ed.)Murphy, George John. Transport and Distribution. 2d ed. Business Books, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.