Cita APA (7a ed.)
Thoreau, H. D. (2001). A plea for Captain John Brown. Virginia Tech.
Cita Chicago Style (17a ed.)
Thoreau, Henry David. A Plea for Captain John Brown. Blacksburg, VA: Virginia Tech, 2001.
Cita MLA (9a ed.)
Thoreau, Henry David. A Plea for Captain John Brown. Virginia Tech, 2001.
Precaución: Estas citas no son 100% exactas.