Cita APA (7a ed.)

Sassen, S. (2010). Cities are at the center of our environmental future. Universidad de los Andes.

Cita Chicago Style (17a ed.)

Sassen, Saskia. Cities Are at the Center of Our Environmental Future. Universidad de los Andes, 2010.

Cita MLA (9a ed.)

Sassen, Saskia. Cities Are at the Center of Our Environmental Future. Universidad de los Andes, 2010.