O'Brien, R. (1977). Marriott: The J. Willand Marriott story. Salt Lake City: Deseret Book Company.
Chicago Style aipamenaO'Brien, Robert. Marriott: The J. Willand Marriott Story. Salt Lake City: Deseret Book Company, 1977.
MLA aipamenaO'Brien, Robert. Marriott: The J. Willand Marriott Story. Salt Lake City: Deseret Book Company, 1977.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.