Cita APA (7th ed.)
Smith, J. R. (1919). Influence of the great war upon shipping.
Cita Chicago (17th ed.)
Smith, Joseph Russell. Influence of the Great War upon Shipping. New York, 1919.
Cita MLA (9th ed.)
Smith, Joseph Russell. Influence of the Great War upon Shipping. 1919.
Atenció: Aquestes cites poden no estar 100% correctes.