Cita APA (7a ed.)

Gray, J. (2017). Zoo ethics: The challenges of compassionate conservation. CSIRO Publishing.

Cita Chicago Style (17a ed.)

Gray, Jennifer. Zoo Ethics: The Challenges of Compassionate Conservation. Clayton, Vic.: CSIRO Publishing, 2017.

Cita MLA (8a ed.)

Gray, Jennifer. Zoo Ethics: The Challenges of Compassionate Conservation. CSIRO Publishing, 2017.