APA (7th ed.) Citation

Richards, G., Hitters, E., & Fernandes, C. (2002). Rotterdam and Porto, cultural capitals 2001: Visitor research.

Chicago Style (17th ed.) Citation

Richards, Greg, Erik Hitters, and Carlos Fernandes. Rotterdam and Porto, Cultural Capitals 2001: Visitor Research. Arnhem, 2002.

MLA (9th ed.) Citation

Richards, Greg, et al. Rotterdam and Porto, Cultural Capitals 2001: Visitor Research. 2002.