Gossop, R. P. (1937). Book illustration: A review of the art as it is today. Lodon School of Printing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Gossop, Robert Percy. Book Illustration: A Review of the Art as It Is Today. [London]: Lodon School of Printing, 1937.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Gossop, Robert Percy. Book Illustration: A Review of the Art as It Is Today. Lodon School of Printing, 1937.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.