Cita APA (7a ed.)

Turvey, S. (2009). Witness to extinction: How we failed to save the Yangtze River dolphin. Oxford University Press.

Cita Chicago Style (17a ed.)

Turvey, Sam. Witness to Extinction: How We Failed to Save the Yangtze River Dolphin. Oxford: Oxford University Press, 2009.

Cita MLA (8a ed.)

Turvey, Sam. Witness to Extinction: How We Failed to Save the Yangtze River Dolphin. Oxford University Press, 2009.