Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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