Farmers' Week (East Lansing, Mich.), Michigan Agricultural College, Michigan State College, & Michigan State University. (1921). Farmers' Week ... program. Michigan Agricultural College.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Farmers' Week (East Lansing, Mich.), Michigan Agricultural College, Michigan State College, و Michigan State University. Farmers' Week ... Program. East Lansing, Mich.: Michigan Agricultural College, 1921.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Farmers' Week (East Lansing, Mich.), et al. Farmers' Week ... Program. Michigan Agricultural College, 1921.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.