Gaya APA
Walker, John. (2017).
Introduction to Hospitality .
England:
Pearson Education International.
Gaya Chicago
Walker, John.
Introduction to Hospitality.
England:
Pearson Education International,
2017.
Text.
Gaya MLA
Walker, John.
Introduction to Hospitality.
England:
Pearson Education International,
2017.
Text.
Gaya Turabian
Walker, John.
Introduction to Hospitality.
England:
Pearson Education International,
2017.
Print.