APA aipamena

(1987). Spirit of enterprise: The 1987 Rolex awards. Berkshire.

Chicago Style aipamena

Spirit of Enterprise: The 1987 Rolex Awards. Berkshire, 1987.

MLA aipamena

Spirit of Enterprise: The 1987 Rolex Awards. Berkshire, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.