Cita APA (7th ed.)

Andreescu, T., & Dospinescu, G. (2008). Problems from the book. XYZ Press.

Cita Chicago (17th ed.)

Andreescu, Titu, i Gabriel Dospinescu. Problems from the Book. Allen, TX: XYZ Press, 2008.

Cita MLA (8th ed.)

Andreescu, Titu, i Gabriel Dospinescu. Problems from the Book. XYZ Press, 2008.