Boju, V., & Funar, L. (2007). math problems notebook. Birkhauser.
Chicago Style aipamenaBoju, Valentin, and Louis Funar. Math Problems Notebook. Boston: Birkhauser, 2007.
MLA aipamenaBoju, Valentin, and Louis Funar. Math Problems Notebook. Birkhauser, 2007.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.