Dyfyniad APA

Palmer, T. (1996). America by rivers. Washington, D.C: Island Press.

Dyfyniad Arddull Chicago

Palmer, Tim. America By Rivers. Washington, D.C: Island Press, 1996.

Dyfyniad MLA

Palmer, Tim. America By Rivers. Washington, D.C: Island Press, 1996.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.