Dyfyniad APA

Lookwood, A. &. R. (2010). Hospitality and tourism operating systems. Cengage Publishing.

Dyfyniad Arddull Chicago

Lookwood, Andrew & Rouski. Hospitality and Tourism Operating Systems. Canada: Cengage Publishing, 2010.

Dyfyniad MLA

Lookwood, Andrew & Rouski. Hospitality and Tourism Operating Systems. Cengage Publishing, 2010.

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