Rypkema, D. . (2003). Economic Benefits of Heritage Conservation: Keynote Speech of CAMA Conference.
Reference author: Donovan Rypkema
First name
Donovan
Last name
Rypkema
Rypkema, D. . (2005). Closing presentation: Heritage and Sustainability \textendash Lessons Learned in America.
Rypkema, D. . (2005). Economics, Sustainability, and Historic Preservation. Retrieved from http://www.nationaltrust.org/advocacy/case/Rypkema_Speech_on_Sustainability_in_Portland.pdf