APA-viite (7. p.)

Astell, A. W. (1999). Political allegory in late medieval England. Cornell University Press.

Chicago-viite (17. p.)

Astell, Ann W. Political Allegory in Late Medieval England. Ithaca: Cornell University Press, 1999.

MLA-viite (9. p.)

Astell, Ann W. Political Allegory in Late Medieval England. Cornell University Press, 1999.