Clark, J. S., Hicks, M. D., & Perry, W. S. (1888). Teacher's manual for Prang's shorter course in form study and drawing. The Prang Educational Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Clark, John Spencer, Mary Dana Hicks, و Walter Scott Perry. Teacher's Manual for Prang's Shorter Course in Form Study and Drawing. Boston: The Prang Educational Company, 1888.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Clark, John Spencer, et al. Teacher's Manual for Prang's Shorter Course in Form Study and Drawing. The Prang Educational Company, 1888.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.