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.