Dyfyniad APA

Douglas, H. (1967). Hotel-keeping and catering. Robert Hale.

Dyfyniad Arddull Chicago

Douglas, Hugh. Hotel-keeping and Catering. London: Robert Hale, 1967.

Dyfyniad MLA

Douglas, Hugh. Hotel-keeping and Catering. Robert Hale, 1967.

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