Cita APA (7th ed.)
Rugg, H. (1930). A History of American civilization: Economic and social. Ginn.
Cita Chicago (17th ed.)
Rugg, Harold. A History of American Civilization: Economic and Social. Boston: Ginn, 1930.
Cita MLA (9th ed.)
Rugg, Harold. A History of American Civilization: Economic and Social. Ginn, 1930.
Atenció: Aquestes cites poden no estar 100% correctes.