Marcucci, R. G. (1990). Beginning algebra. Houghton mifflin.
Lua i Stíl Chicago (17ú heag.)Marcucci, Robert G. Beginning Algebra. Dallas: Houghton mifflin, 1990.
Lua MLA (9ú heag.)Marcucci, Robert G. Beginning Algebra. Houghton mifflin, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.