Dyfyniad APA

(1996). Environmental Management for Hotels. Butterworth-Heinemann.

Dyfyniad Arddull Chicago

Environmental Management for Hotels. Butterworth-Heinemann, 1996.

Dyfyniad MLA

Environmental Management for Hotels. Butterworth-Heinemann, 1996.

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