Cita APA

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

Citación estilo Chicago

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

Cita MLA

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