APA-referens (7:e uppl.)
Williams, D. B. (2015). Too high and too steep: Reshaping Seattle's topography. University of Washington Press.
Chicago-referens (17:e uppl.)
Williams, David B. Too High and Too Steep: Reshaping Seattle's Topography. Seattle, [Washington] ; London, [England]: University of Washington Press, 2015.
MLA-referens (9:e uppl.)
Williams, David B. Too High and Too Steep: Reshaping Seattle's Topography. University of Washington Press, 2015.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.