Cita APA (7a ed.)

Clack, J. A. (2012). Gaining Ground, Second Edition: The Origin and Evolution of Tetrapods (Second edition.). Indiana University Press.

Cita Chicago Style (17a ed.)

Clack, Jennifer A. Gaining Ground, Second Edition: The Origin and Evolution of Tetrapods. Second edition. Bloomington: Indiana University Press, 2012.

Cita MLA (8a ed.)

Clack, Jennifer A. Gaining Ground, Second Edition: The Origin and Evolution of Tetrapods. Second edition. Indiana University Press, 2012.