Παραπομπή σε μορφή APA (7η εκδ.)

Zafran, E. M. (1988). Fifty old master paintings from the walters art gallery. Trustees of the Walters Art Gallery.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Zafran, Eric M. Fifty Old Master Paintings from the Walters Art Gallery. Baltimore: Trustees of the Walters Art Gallery, 1988.

Παραπομπή σε μορφή MLA (9th εκδ.)

Zafran, Eric M. Fifty Old Master Paintings from the Walters Art Gallery. Trustees of the Walters Art Gallery, 1988.