BLACK, W. (1991). International Hotel And Resort Design 2 By Wendy Black. PBC International.
Chicago-viite (17. p.)BLACK, Wendy. International Hotel And Resort Design 2 By Wendy Black. PBC International, 1991.
MLA-viite (8. p.)BLACK, Wendy. International Hotel And Resort Design 2 By Wendy Black. PBC International, 1991.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.