APA-viite (7. p.)
Budziszewski, J. (2011). What we can't not know: A guide (Revised and expanded edition.). Ignatius Press.
Chicago-viite (17. p.)
Budziszewski, J. What We Can't Not Know: A Guide. Revised and expanded edition. San Francisco: Ignatius Press, 2011.
MLA-viite (9. p.)
Budziszewski, J. What We Can't Not Know: A Guide. Revised and expanded edition. Ignatius Press, 2011.
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