Dyfyniad APA

Diebel. Crossing the Driftless. University of Wisconsin Press.

Dyfyniad Arddull Chicago

Diebel. Crossing the Driftless. University of Wisconsin Press.

Dyfyniad MLA

Diebel. Crossing the Driftless. University of Wisconsin Press.

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