APA-viite (7. p.)
Hittinger, R. (2007). The first grace: Rediscovering the natural law in a post-Christian world (Paperback edition.). ISI Books.
Chicago-viite (17. p.)
Hittinger, Russell. The First Grace: Rediscovering the Natural Law in a Post-Christian World. Paperback edition. Wilmington, DE: ISI Books, 2007.
MLA-viite (9. p.)
Hittinger, Russell. The First Grace: Rediscovering the Natural Law in a Post-Christian World. Paperback edition. ISI Books, 2007.
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