C. E. L. Walsh. (2011). Space Race. Campfire.
Cita Chicago (17th ed.)C. E. L. Walsh. Space Race. Campfire, 2011.
Cita MLA (9th ed.)C. E. L. Walsh. Space Race. Campfire, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.
Cita APA (7th ed.)