(1978). In the spirit of enterprise: From the Rolex Awards. San Francisco: W. H. Freeman and Company.
استشهاد بنمط شيكاغوIn the Spirit of Enterprise: From the Rolex Awards. San Francisco: W. H. Freeman and Company, 1978.
MLA استشهادIn the Spirit of Enterprise: From the Rolex Awards. San Francisco: W. H. Freeman and Company, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.