AUFMAN, R. W. (1990). College Algebra And Trigonometry Richard D. Nation. Hougthon Mifflin.
Lua i Stíl Chicago (17ú heag.)AUFMAN, Richard W. College Algebra And Trigonometry Richard D. Nation. Hougthon Mifflin, 1990.
Lua MLA (8ú heag.)AUFMAN, Richard W. College Algebra And Trigonometry Richard D. Nation. Hougthon Mifflin, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.