APA (7. basım) Alıntı

Perry, W. S. (1897). Four centuries of conflict for the continent of North America, 1497-1897. S.l..

Chicago Style (17. basım) Atıf

Perry, William Stevens. Four Centuries of Conflict for the Continent of North America, 1497-1897. S.l., 1897.

MLA (8th ed.) Atıf

Perry, William Stevens. Four Centuries of Conflict for the Continent of North America, 1497-1897. S.l., 1897.