Cita APA (7th ed.)
Humez, A., & Humez, N. D. (2008). On the dot: The speck that changed the world. Oxford University Press.
Cita Chicago (17th ed.)
Humez, Alexander, i Nicholas D. Humez. On the Dot: The Speck That Changed the World. Oxford ; New York: Oxford University Press, 2008.
Cita MLA (9th ed.)
Humez, Alexander, i Nicholas D. Humez. On the Dot: The Speck That Changed the World. Oxford University Press, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.