McNeill, D., & Freiberger, P. (1993). Fuzzy logic. Simon & Schuster.
Lua i Stíl Chicago (17ú heag.)McNeill, Dan, agus Paul Freiberger. Fuzzy Logic. New York: Simon & Schuster, 1993.
Lua MLA (9ú heag.)McNeill, Dan, agus Paul Freiberger. Fuzzy Logic. Simon & Schuster, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.