APA-Zitierstil (7. Ausg.)

Porterfield, J. (2005). The Lincoln-Douglas senatorial debates of 1858: A primary source investigation. Rosen Central Primary Source.

Chicago-Zitierstil (17. Ausg.)

Porterfield, Jason. The Lincoln-Douglas Senatorial Debates of 1858: A Primary Source Investigation. New York: Rosen Central Primary Source, 2005.

MLA-Zitierstil (9. Ausg.)

Porterfield, Jason. The Lincoln-Douglas Senatorial Debates of 1858: A Primary Source Investigation. Rosen Central Primary Source, 2005.