Cita APA (7a ed.)
Sandburg, C. (1946). Abraham Lincoln, The prairie years. Harcourt, Brace & Comp.
Cita Chicago Style (17a ed.)
Sandburg, Carl. Abraham Lincoln, The Prairie Years. New York: Harcourt, Brace & Comp, 1946.
Cita MLA (9a ed.)
Sandburg, Carl. Abraham Lincoln, The Prairie Years. Harcourt, Brace & Comp, 1946.
Precaución: Estas citas no son 100% exactas.