Cita APA (7th ed.)

Riddell, R. (2004). Sustainable Urban Planning: Tipping the Balance. Blackwell Publishing Ltd.

Cita Chicago (17th ed.)

Riddell, Robert. Sustainable Urban Planning: Tipping the Balance. Oxford: Blackwell Publishing Ltd, 2004.

Cita MLA (9th ed.)

Riddell, Robert. Sustainable Urban Planning: Tipping the Balance. Blackwell Publishing Ltd, 2004.