Dyfyniad APA
Miles, J. C. (2009). Wilderness in national parks: Playground or preserve. University of Washington Press.
Dyfyniad Arddull Chicago
Miles, John C. Wilderness in National Parks: Playground or Preserve. Seattle: University of Washington Press, 2009.
Dyfyniad MLA
Miles, John C. Wilderness in National Parks: Playground or Preserve. University of Washington Press, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.