Citazione Stile APA (7a Edizione)

Johnson, P., & Thomas, B. (1992). Perspectives on tourism policy. Mansell.

Citazione stile Chigago Style (17a edizione)

Johnson, Peter, e Barry Thomas. Perspectives on Tourism Policy. London: Mansell, 1992.

Citatione MLA (9a ed.)

Johnson, Peter, e Barry Thomas. Perspectives on Tourism Policy. Mansell, 1992.