APA (7th ed.) Zitazioa

Calkins, M. (2011). The sustainable sites handbook. Wiley.

Chicago Style (17th ed.) Zitazioa

Calkins, Meg. The Sustainable Sites Handbook. Hoboken, N.J.: Wiley, 2011.

MLA (9th ed.) Zitazioa

Calkins, Meg. The Sustainable Sites Handbook. Wiley, 2011.