Dyfyniad APA
Dempsey, D. (2004). On the brink: The Great Lakes in the 21st century. Michigan State University Press.
Dyfyniad Arddull Chicago
Dempsey, Dave. On the Brink: The Great Lakes in the 21st Century. East Lansing: Michigan State University Press, 2004.
Dyfyniad MLA
Dempsey, Dave. On the Brink: The Great Lakes in the 21st Century. Michigan State University Press, 2004.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.