Dyfyniad APA

Bowen. The Road through the Rust Belt. W.E. Upjohn Institute.

Dyfyniad Arddull Chicago

Bowen. The Road Through the Rust Belt. W.E. Upjohn Institute.

Dyfyniad MLA

Bowen. The Road Through the Rust Belt. W.E. Upjohn Institute.

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