Oakshott, L. (2007). Essential quantitative methods. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Oakshott, Les. Essential Quantitative Methods. New York: Palgrave Macmillan, 2007.
Lua MLA (9ú heag.)Oakshott, Les. Essential Quantitative Methods. Palgrave Macmillan, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.