APA (7th ed.) Zitazioa

Johannsen, R. W. (1965). The Lincoln-Douglas debates of 1858 (2a. ed.). Oxford.

Chicago Style (17th ed.) Zitazioa

Johannsen, Robert W. The Lincoln-Douglas Debates of 1858. 2a. ed. Nueva York: Oxford, 1965.

MLA (9th ed.) Zitazioa

Johannsen, Robert W. The Lincoln-Douglas Debates of 1858. 2a. ed. Oxford, 1965.