Berkowitz, J., Wyatt, V., & Gagnon, C. (2009). Out of this world: The amazing search for an alien earth. Kids Can Press.
Cita Chicago Style (17a ed.)Berkowitz, Jacob, Valerie Wyatt, y Céleste Gagnon. Out of This World: The Amazing Search for an Alien Earth. Toronto, Ont. ; Tonawanda, N.Y.: Kids Can Press, 2009.
Cita MLA (8a ed.)Berkowitz, Jacob, et al. Out of This World: The Amazing Search for an Alien Earth. Kids Can Press, 2009.
Precaución: Estas citas no son 100% exactas.