APA (7th ed.) Citation

Pereira, P., Pereira, D. I., Gonçalves, B., Viveiros, C., & Afonso, A. (2018). Assessment of tourism value in geological heritage: Why, what and how.

Chicago Style (17th ed.) Citation

Pereira, Paulo, D. I. Pereira, Bruno Gonçalves, Carla Viveiros, and Andreia Afonso. Assessment of Tourism Value in Geological Heritage: Why, What and How. 2018.

MLA (8th ed.) Citation

Pereira, Paulo, et al. Assessment of Tourism Value in Geological Heritage: Why, What and How. 2018.

Warning: These citations may not always be 100% accurate.