Cita APA (7a ed.)

Dingus, L., & Norell, M. (2010). Barnum Brown: The man who discovered Tyrannosaurus rex. University of California Press.

Cita Chicago Style (17a ed.)

Dingus, Lowell, y Mark Norell. Barnum Brown: The Man Who Discovered Tyrannosaurus Rex. Berkeley: University of California Press, 2010.

Cita MLA (8a ed.)

Dingus, Lowell, y Mark Norell. Barnum Brown: The Man Who Discovered Tyrannosaurus Rex. University of California Press, 2010.