Dyfyniad APA

Simpson, G. G. (1982). Attending marvels: A Patagonian journal. Time-Life Books.

Dyfyniad Arddull Chicago

Simpson, George Gaylord. Attending Marvels: A Patagonian Journal. Alexandria, Va: Time-Life Books, 1982.

Dyfyniad MLA

Simpson, George Gaylord. Attending Marvels: A Patagonian Journal. Time-Life Books, 1982.

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