Cita APA (7a ed.)

Middleton, V. T. C., & Hawkins, R. (1998). Sustainable Tourism: A Marketing Perspective (1ed. st.). Butterworth-Heinemann.

Cita Chicago Style (17a ed.)

Middleton, Victor T. C., y Rebecca Hawkins. Sustainable Tourism: A Marketing Perspective. 1ed. st. Oxford: Butterworth-Heinemann, 1998.

Cita MLA (9a ed.)

Middleton, Victor T. C., y Rebecca Hawkins. Sustainable Tourism: A Marketing Perspective. 1ed. st. Butterworth-Heinemann, 1998.