APA (7th ed.) Citation

Pforr, C., Megerle, A., & Dowling, R. K. (2006). Geotourism: A perspective from Southwest Germany. Butterworth Heinemann.

Chicago Style (17th ed.) Citation

Pforr, Christof, A. Megerle, and Ross K. Dowling. Geotourism: A Perspective from Southwest Germany. Butterworth Heinemann, 2006.

MLA (9th ed.) Citation

Pforr, Christof, et al. Geotourism: A Perspective from Southwest Germany. Butterworth Heinemann, 2006.