Loftus, G. R., & Loftus, E. F. (1982). Essence of statistics. Brooks /Cole Publishing co..
Lua i Stíl Chicago (17ú heag.)Loftus, Geofrey R., agus Elizabeth F. Loftus. Essence of Statistics. California: Brooks /Cole Publishing co., 1982.
Lua MLA (9ú heag.)Loftus, Geofrey R., agus Elizabeth F. Loftus. Essence of Statistics. Brooks /Cole Publishing co., 1982.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.