Dyfyniad APA

(1992). The train-watcher's guide to north American railroads. Waukesha, WI: Kalmbach Books.

Dyfyniad Arddull Chicago

The Train-watcher's Guide to North American Railroads. Waukesha, WI: Kalmbach Books, 1992.

Dyfyniad MLA

The Train-watcher's Guide to North American Railroads. Waukesha, WI: Kalmbach Books, 1992.

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