(1977). Small business works!: How to compete and win in the free enterprise system / Eugene L. Gross, Adrian R. Cancel, Oscar Figueroa ; illustrated by Eugene L. Gross.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Small Business Works!: How to Compete and Win in the Free Enterprise System / Eugene L. Gross, Adrian R. Cancel, Oscar Figueroa ; Illustrated by Eugene L. Gross. 1977.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Small Business Works!: How to Compete and Win in the Free Enterprise System / Eugene L. Gross, Adrian R. Cancel, Oscar Figueroa ; Illustrated by Eugene L. Gross. 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.