توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(22668215), J. H. (2025). Spreadsheet index of named bookbinders in the Sotheby's auction catalogues for the sales of the Major John Roland Abbey collection, sold between 1965 and 1989.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

(22668215), John Hodgson. Spreadsheet Index of Named Bookbinders in the Sotheby's Auction Catalogues for the Sales of the Major John Roland Abbey Collection, Sold Between 1965 and 1989. 2025.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

(22668215), John Hodgson. Spreadsheet Index of Named Bookbinders in the Sotheby's Auction Catalogues for the Sales of the Major John Roland Abbey Collection, Sold Between 1965 and 1989. 2025.