एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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