Yan, G., & Manul, J. (2014). Tamaraw population soars to 302, highest on record. AmCham Philippines Business Journal.
Chicago-viite (17. p.)Yan, Gregg, ja John Manul. "Tamaraw Population Soars to 302, Highest on Record." AmCham Philippines Business Journal 2014.
MLA-viite (9. p.)Yan, Gregg, ja John Manul. "Tamaraw Population Soars to 302, Highest on Record." AmCham Philippines Business Journal, 2014.
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