Grand Plaza Hotel Corporation. (1994). Grand Plaza Hotel Corporation: A member of the CDL hotels : annual report, 1993. s.n.
Chicago-viite (17. p.)Grand Plaza Hotel Corporation. Grand Plaza Hotel Corporation: A Member of the CDL Hotels : Annual Report, 1993. [S.l: s.n, 1994.
MLA-viite (9. p.)Grand Plaza Hotel Corporation. Grand Plaza Hotel Corporation: A Member of the CDL Hotels : Annual Report, 1993. s.n, 1994.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.