APA (7th ed.) Citation

Malet Calvo, D., & Ramos, M. J. (2018). Suddenly last summer: How the tourist tsunami hit Lisbon.

Chicago Style (17th ed.) Citation

Malet Calvo, D., and M. J. Ramos. Suddenly Last Summer: How the Tourist Tsunami Hit Lisbon. 2018.

MLA (8th ed.) Citation

Malet Calvo, D., and M. J. Ramos. Suddenly Last Summer: How the Tourist Tsunami Hit Lisbon. 2018.

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