Cita APA (7a ed.)
Hooper, M. (2008). The ferocious summer: Adélie penguins and the warming of Antactica. Greystone Books.
Cita Chicago Style (17a ed.)
Hooper, Meredith. The Ferocious Summer: Adélie Penguins and the Warming of Antactica. Vancouver, B.C.: Greystone Books, 2008.
Cita MLA (9a ed.)
Hooper, Meredith. The Ferocious Summer: Adélie Penguins and the Warming of Antactica. Greystone Books, 2008.
Precaución: Estas citas no son 100% exactas.