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). Economics, Sustainability, and Historic Preservation Retrieved from http://www.nationaltrust.org/advocacy/case/Rypkema_Speech_on_Sustainability_in_Portland.pdf