Παραπομπή σε μορφή APA (7η εκδ.)

W. & F.C. Bonham & Sons & Dryden, E. (1987). The Ernst Dryden Archive: Which will be sold at auction by Bonhams on Wednesday, December 2nd, 1987. W. & F.C. Bonham & Sons Ltd.

Παραπομπή σε μορφή Chicago (17η εκδ.)

W. & F.C. Bonham & Sons και Ernst Dryden. The Ernst Dryden Archive: Which Will Be Sold at Auction by Bonhams on Wednesday, December 2nd, 1987. London: W. & F.C. Bonham & Sons Ltd, 1987.

Παραπομπή σε μορφή MLA (8th εκδ.)

W. & F.C. Bonham & Sons και Ernst Dryden. The Ernst Dryden Archive: Which Will Be Sold at Auction by Bonhams on Wednesday, December 2nd, 1987. W. & F.C. Bonham & Sons Ltd, 1987.