Παραπομπή σε μορφή APA (7η εκδ.)

Wilhelm, L. W. (1884). Sir George Calvert, Baron of Baltimore. A paper read before the Maryland Historical Society, April 14th, 1884. Baltimore.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Wilhelm, Lewis Webb. Sir George Calvert, Baron of Baltimore. A Paper Read Before the Maryland Historical Society, April 14th, 1884. Baltimore, 1884.

Παραπομπή σε μορφή MLA (8th εκδ.)

Wilhelm, Lewis Webb. Sir George Calvert, Baron of Baltimore. A Paper Read Before the Maryland Historical Society, April 14th, 1884. Baltimore, 1884.