Παραπομπή σε μορφή APA (7η εκδ.)

Keenan, P. (1868). Circular: "Head-Quarters Fenian Brotherhood, Treasury Department." From: Patrick Keenan, March 18, 1868.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Keenan, Patrick. Circular: "Head-Quarters Fenian Brotherhood, Treasury Department." From: Patrick Keenan, March 18, 1868. 1868.

Παραπομπή σε μορφή MLA (8th εκδ.)

Keenan, Patrick. Circular: "Head-Quarters Fenian Brotherhood, Treasury Department." From: Patrick Keenan, March 18, 1868. 1868.