APA (7th ed.) Citation

Czaika, M., de Haas, H., & Villares-Varela, M. (2017). The global evolution of travel visa regimes: An analysis based on the DEMIG VISA database. International Migration Institute.

Chicago Style (17th ed.) Citation

Czaika, M., H. de Haas, and M. Villares-Varela. The Global Evolution of Travel Visa Regimes: An Analysis Based on the DEMIG VISA Database. International Migration Institute, 2017.

MLA (9th ed.) Citation

Czaika, M., et al. The Global Evolution of Travel Visa Regimes: An Analysis Based on the DEMIG VISA Database. International Migration Institute, 2017.