APA aipamena

O’Brien, R. (1977). Marriott: The J. Willard Marriott story. Salt Lake City: Deseret Book Co..

Chicago Style aipamena

O’Brien, Robert. Marriott: The J. Willard Marriott Story. Salt Lake City: Deseret Book Co., 1977.

MLA aipamena

O’Brien, Robert. Marriott: The J. Willard Marriott Story. Salt Lake City: Deseret Book Co., 1977.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.