Παραπομπή APA

Beard, C. A., & Beard,Mary R. (1906). Rise of American civilization. MaC Millan.

Παραπομπή Chicago Style

Beard, Charles A., και Beard,Mary R. Rise of American Civilization. New York: MaC Millan, 1906.

Παραπομπή MLA

Beard, Charles A., και Beard,Mary R. Rise of American Civilization. MaC Millan, 1906.