APA aipamena

Cullen, P., & Peter Cullen. (1997). Economics for Hospitality Management. London: Thomson.

Chicago Style aipamena

Cullen, Peter, và Peter Cullen. Economics for Hospitality Management. London: Thomson, 1997.

MLA aipamena

Cullen, Peter, và Peter Cullen. Economics for Hospitality Management. London: Thomson, 1997.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.