Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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