APA (7th ed.) Citation

Chen, A., Lu, Y., & Ng, Y. C. (2015). The principles of geotourism. Springer.

Chicago Style (17th ed.) Citation

Chen, Anze, Yunting Lu, and Young C.Y Ng. The Principles of Geotourism. Berlin [u.a.]: Springer, 2015.

MLA (9th ed.) Citation

Chen, Anze, et al. The Principles of Geotourism. Springer, 2015.