Gaya APA

Elshaer, A, M., Marzouk, A, M. (2018). Labor in Tourism and Hospitality Industry . New York: Apple Academic Press.

Gaya MLA

Elshaer, Abdallah, M.., Marzouk, Asmaa, M.. "Labor in Tourism and Hospitality Industry". New York: Apple Academic Press, 2018. Text.