Cita APA

Wells, S. J., & Wells, S. J. (1969). International economics: A general textbook. London, Sydney: G. Allen and Unwin.

Citación estilo Chicago

Wells, Sidney J., y Sidney J. Wells. International Economics: A General Textbook. London, Sydney: G. Allen and Unwin, 1969.

Cita MLA

Wells, Sidney J., y Sidney J. Wells. International Economics: A General Textbook. London, Sydney: G. Allen and Unwin, 1969.