Salas, S. L. (1974). Calculus: One and several variables part 1 (2nd ed.). Xerox college.
Lua i Stíl Chicago (17ú heag.)Salas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Lexington: Xerox college, 1974.
Lua MLA (9ú heag.)Salas, Saturnino L. Calculus: One and Several Variables Part 1. 2nd ed. Xerox college, 1974.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.