Recco, W. (2002). 501 algebra questions. Learning Express.
Lua i Stíl Chicago (17ú heag.)Recco, William. 501 Algebra Questions. New York: Learning Express, 2002.
Lua MLA (9ú heag.)Recco, William. 501 Algebra Questions. Learning Express, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.