APA-viite (7. p.)

Black, A. (1993). Political thought in Europe: 1250-1450. Univ. Pr.

Chicago-viite (17. p.)

Black, Antony. Political Thought in Europe: 1250-1450. Cambridge: Univ. Pr, 1993.

MLA-viite (9. p.)

Black, Antony. Political Thought in Europe: 1250-1450. Univ. Pr, 1993.