Cita APA (7th ed.)
SpringerLink (Online service) & Riffat, S. Future Cities and Environment. Springer International Publishing : Imprint: Springer.
Cita Chicago (17th ed.)
SpringerLink (Online service) i Saffa Riffat. Future Cities and Environment. Cham: Springer International Publishing : Imprint: Springer.
Cita MLA (9th ed.)
SpringerLink (Online service) i Saffa Riffat. Future Cities and Environment. Springer International Publishing : Imprint: Springer.
Atenció: Aquestes cites poden no estar 100% correctes.