Leithold, L. (1980). College algebra (2d ed.). Macmillan.
Lua i Stíl Chicago (17ú heag.)Leithold, Louis. College Algebra. 2d ed. New York: Macmillan, 1980.
Lua MLA (9ú heag.)Leithold, Louis. College Algebra. 2d ed. Macmillan, 1980.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.