Cita APA (7a ed.)

Jackson, T. (2019). Are we alone in the universe?: Theories about intelligent life on other planets (First edition.). Gareth Stevens Publishing.

Cita Chicago Style (17a ed.)

Jackson, Tom. Are We Alone in the Universe?: Theories About Intelligent Life on Other Planets. First edition. New York, NY: Gareth Stevens Publishing, 2019.

Cita MLA (8a ed.)

Jackson, Tom. Are We Alone in the Universe?: Theories About Intelligent Life on Other Planets. First edition. Gareth Stevens Publishing, 2019.

Precaución: Estas citas no son 100% exactas.