APA Style
Gray, W, S, -, L, S, C. (c2003).
Hotel and motel management and operations (4th ed.).
Singapore:
Pearson Education.
MLA Style
Gray, William, S., -, Liguori,, Salvatore, C..
"Hotel and motel management and operations".
4th ed.
Singapore:
Pearson Education,
c2003.
Text.