Cita APA (7th ed.)
Emerson, J. (2009). Lincoln the inventor. Southern Illinois University Press.
Cita Chicago (17th ed.)
Emerson, Jason. Lincoln the Inventor. Carbondale: Southern Illinois University Press, 2009.
Cita MLA (9th ed.)
Emerson, Jason. Lincoln the Inventor. Southern Illinois University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.