Zimmermann, H. (1994). Fuzzy set theory and its applications (2nd ed.). Kluwer Academic.
Chicago Style (17th ed.) CitationZimmermann, Hans-Jürgen. Fuzzy Set Theory and Its Applications. 2nd ed. Boston, Mass.: Kluwer Academic, 1994.
MLA (9th ed.) CitationZimmermann, Hans-Jürgen. Fuzzy Set Theory and Its Applications. 2nd ed. Kluwer Academic, 1994.