APA (7e ed.) Bronvermelding

Lundberg, D. E., & Lundberg, C. B. (1985). International travel and tourism. Wiley.

Chicago (17e ed.) Bronvermelding

Lundberg, Donald E., en Carolyn B. Lundberg. International Travel and Tourism. New York: Wiley, 1985.

MLA (9e ed.) Bronvermelding

Lundberg, Donald E., en Carolyn B. Lundberg. International Travel and Tourism. Wiley, 1985.