APA (7th ed.) Citation

Gray, P. H. (1973). The balance of payments costs of international travel. Centre d' Etudes du Tourisme.

Chicago Style (17th ed.) Citation

Gray, Peter H. The Balance of Payments Costs of International Travel. Paris: Centre d' Etudes du Tourisme, 1973.

MLA (9th ed.) Citation

Gray, Peter H. The Balance of Payments Costs of International Travel. Centre d' Etudes du Tourisme, 1973.