Παραπομπή σε μορφή APA (7η εκδ.)

Danler, P. F. (1867). Receipt, To: F. B. Gallagher, From: Peter F. Danler, August 22, 1867.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Danler, Peter F. Receipt, To: F. B. Gallagher, From: Peter F. Danler, August 22, 1867. 1867.

Παραπομπή σε μορφή MLA (8th εκδ.)

Danler, Peter F. Receipt, To: F. B. Gallagher, From: Peter F. Danler, August 22, 1867. 1867.