(1987). Spirit of Enterprise (The 1987 Rolex Awards). Van Nostrand.
Cita Chicago (17th ed.)Spirit of Enterprise (The 1987 Rolex Awards). Berkshire, England: Van Nostrand, 1987.
Cita MLA (9th ed.)Spirit of Enterprise (The 1987 Rolex Awards). Van Nostrand, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.