Dyfyniad APA
Birkeland, J. (2002). Design for sustainability: A sourcebook of integrated, ecological solutions. Earthscan Publications.
Dyfyniad Arddull Chicago
Birkeland, Janis. Design for Sustainability: A Sourcebook of Integrated, Ecological Solutions. London ; Sterling, VA: Earthscan Publications, 2002.
Dyfyniad MLA
Birkeland, Janis. Design for Sustainability: A Sourcebook of Integrated, Ecological Solutions. Earthscan Publications, 2002.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.