Cita APA (7a ed.)

Buta, R. J., & Kopaska-Merkel, D. C. (2016). Footprints in Stone: Fossil Traces of Coal-Age Tetrapods. The University of Alabama Press.

Cita Chicago Style (17a ed.)

Buta, Ronald James, y David C. Kopaska-Merkel. Footprints in Stone: Fossil Traces of Coal-Age Tetrapods. Tuscaloosa: The University of Alabama Press, 2016.

Cita MLA (8a ed.)

Buta, Ronald James, y David C. Kopaska-Merkel. Footprints in Stone: Fossil Traces of Coal-Age Tetrapods. The University of Alabama Press, 2016.