Hockaday, J. (2009). Greenscapes: Olmsted's Pacific Northwest. Washington State University Press.
Cita Chicago Style (17a ed.)Hockaday, Joan. Greenscapes: Olmsted's Pacific Northwest. Pullman, Wash.: Washington State University Press, 2009.
Cita MLA (8a ed.)Hockaday, Joan. Greenscapes: Olmsted's Pacific Northwest. Washington State University Press, 2009.
Precaución: Estas citas no son 100% exactas.