APA-viite (7. p.)

Tobias, C. M. (1999). Archaeological History of Cagayan Province. Hukay.

Chicago-viite (17. p.)

Tobias, Carol M. "Archaeological History of Cagayan Province." Hukay 1999.

MLA-viite (9. p.)

Tobias, Carol M. "Archaeological History of Cagayan Province." Hukay, 1999.