OLIVER, R. W. Business auctions: An insiders guide to buying and selling business equipment and real estate at auction. Probus Publishing company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)OLIVER, Richard W. Business Auctions: An Insiders Guide to Buying and Selling Business Equipment and Real Estate at Auction. Probus Publishing company.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)OLIVER, Richard W. Business Auctions: An Insiders Guide to Buying and Selling Business Equipment and Real Estate at Auction. Probus Publishing company.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.