- & PAYNE, J. N. [. (1972). Harbrace mathematics. Harcourt Brace Jovanovich.
Lua i Stíl Chicago (17ú heag.)- agus Joseph N. [dkk.] PAYNE. Harbrace Mathematics. New York: Harcourt Brace Jovanovich, 1972.
Lua MLA (9ú heag.)- agus Joseph N. [dkk.] PAYNE. Harbrace Mathematics. Harcourt Brace Jovanovich, 1972.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.