Lynch, W. (2007). Penguins of the world ([2nd ed.].). Firefly Books.
Cita Chicago Style (17a ed.)Lynch, Wayne. Penguins of the World. [2nd ed.]. Richmond Hill, Ont.: Firefly Books, 2007.
Cita MLA (8a ed.)Lynch, Wayne. Penguins of the World. [2nd ed.]. Firefly Books, 2007.
Precaución: Estas citas no son 100% exactas.