Cita APA (7th ed.)

Clark, G., & Moonen, T. (2017). World cities and nation states. Wiley Blackwell.

Cita Chicago (17th ed.)

Clark, Greg, i Tim Moonen. World Cities and Nation States. Chichester, England: Wiley Blackwell, 2017.

Cita MLA (9th ed.)

Clark, Greg, i Tim Moonen. World Cities and Nation States. Wiley Blackwell, 2017.