Dyfyniad APA

The Railway and engineering review. [s.n.].

Dyfyniad Arddull Chicago

The Railway and Engineering Review. Chicago: [s.n.].

Dyfyniad MLA

The Railway and Engineering Review. [s.n.].

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