Good, R. A. (1966). Introduction to mathematics. Harcourt.
Lua i Stíl Chicago (17ú heag.)Good, Ricahrd A. Introduction to Mathematics. New York: Harcourt, 1966.
Lua MLA (9ú heag.)Good, Ricahrd A. Introduction to Mathematics. Harcourt, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.