Cita APA (7th ed.)

Xu, J. (2010). Lecture notes on Mathematical Olympiad courses: For junior section, volume 1. World Scientific.

Cita Chicago (17th ed.)

Xu, Jiagu. Lecture Notes on Mathematical Olympiad Courses: For Junior Section, Volume 1. Singapore: World Scientific, 2010.

Cita MLA (9th ed.)

Xu, Jiagu. Lecture Notes on Mathematical Olympiad Courses: For Junior Section, Volume 1. World Scientific, 2010.