Brusatte, S. L., Carr, T. D., Erickson, G. M., Bever, G. S., & Norell, M. A. (2009). A long-snouted, multihorned tyrannosaurid from the Late Cretaceous of Mongolia. National Academy of Sciences.
Chicago Style aipamenaBrusatte, Stephen L., Thomas D. Carr, Gregory M. Erickson, Gabe S. Bever, and Mark A. Norell. A Long-snouted, Multihorned Tyrannosaurid From the Late Cretaceous of Mongolia. National Academy of Sciences, 2009.
MLA aipamenaBrusatte, Stephen L., et al. A Long-snouted, Multihorned Tyrannosaurid From the Late Cretaceous of Mongolia. National Academy of Sciences, 2009.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.