Cita APA (7a ed.)

Morris, R. W., Furth, C., Young, A. S., & Ralphs, D. H. (1948). Transport, trade and travel through the ages. Allen and Unwin.

Cita Chicago Style (17a ed.)

Morris, R. W., Charles Furth, Arthur S. Young, y Dorothy H. Ralphs. Transport, Trade and Travel Through the Ages. London: Allen and Unwin, 1948.

Cita MLA (9a ed.)

Morris, R. W., et al. Transport, Trade and Travel Through the Ages. Allen and Unwin, 1948.