Cita APA (7th ed.)

Hooft, G. '. (2008). Playing with planets (English ed.). World Scientific.

Cita Chicago (17th ed.)

Hooft, G. 't. Playing with Planets. English ed. Hackensack, NJ: World Scientific, 2008.

Cita MLA (9th ed.)

Hooft, G. 't. Playing with Planets. English ed. World Scientific, 2008.

Atenció: Aquestes cites poden no estar 100% correctes.