Smith, P. K. (1959). College mathematics for freshmen (2nd ed.).
Lua i Stíl Chicago (17ú heag.)Smith, Paul K. College Mathematics for Freshmen. 2nd ed. Princeton, N.J, 1959.
Lua MLA (9ú heag.)Smith, Paul K. College Mathematics for Freshmen. 2nd ed. 1959.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.