Cita APA (7th ed.)

Eadington, W. R., & Smith, V. L. (1992). Tourism alternatives: Potentials and problems in the development of tourism. University of Pennsylvania Press.

Cita Chicago (17th ed.)

Eadington, William R., i Valene L. Smith. Tourism Alternatives: Potentials and Problems in the Development of Tourism. Philadelphia, Penn: University of Pennsylvania Press, 1992.

Cita MLA (9th ed.)

Eadington, William R., i Valene L. Smith. Tourism Alternatives: Potentials and Problems in the Development of Tourism. University of Pennsylvania Press, 1992.