Cita APA

Turnbull, P. W., & Cunningham, M. T. (1981). International Markeiting and Purchasing.

Citación estilo Chicago

Turnbull, Peter W., y Malcolm T. Cunningham. International Markeiting and Purchasing. :, 1981.

Cita MLA

Turnbull, Peter W., y Malcolm T. Cunningham. International Markeiting and Purchasing. 1981.