Andreescu, T., & Dospinescu, G. (2008). Problems from the book. XYZ Press.
Lua i Stíl Chicago (17ú heag.)Andreescu, Titu, agus Gabriel Dospinescu. Problems from the Book. Allen, TX: XYZ Press, 2008.
Lua MLA (8ú heag.)Andreescu, Titu, agus Gabriel Dospinescu. Problems from the Book. XYZ Press, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.