Osterland, E. A. (2012). Power entertaining: Secrets to building lasting relationships, hosting unforgettable events, and closing big deals from America's 1st master sommelier. Wiley.
Cita Chicago (17th ed.)Osterland, Edmund A. Power Entertaining: Secrets to Building Lasting Relationships, Hosting Unforgettable Events, and Closing Big Deals from America's 1st Master Sommelier. Hoboken, N.J.: Wiley, 2012.
Cita MLA (9th ed.)Osterland, Edmund A. Power Entertaining: Secrets to Building Lasting Relationships, Hosting Unforgettable Events, and Closing Big Deals from America's 1st Master Sommelier. Wiley, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.