Gerdt, N. (2007). Landscape Architecture in the United States: The state of the profession around the world. Topos.
Chicago-Zitierstil (17. Ausg.)Gerdt, Nadine. "Landscape Architecture in the United States: The State of the Profession Around the World." Topos 2007.
MLA-Zitierstil (8. Ausg.)Gerdt, Nadine. "Landscape Architecture in the United States: The State of the Profession Around the World." Topos, 2007.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.