(1987). Spirit of Enterprise (The 1987 Rolex Awards). Van Nostrand.
Citación estilo ChicagoSpirit of Enterprise (The 1987 Rolex Awards). Berkshire, England: Van Nostrand, 1987.
Cita MLASpirit of Enterprise (The 1987 Rolex Awards). Van Nostrand, 1987.
Warning: These citations may not always be 100% accurate.