APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：這些引文格式不一定是100％准確.