Zimmermann, H. (1991). Fuzzy set theory: And its applications / H.-J. Zimmermann (2. rev. ed.). Boston: Kluwer Academic Publishers.
Chicago Style CitationZimmermann, H.-J. Fuzzy Set Theory: And Its Applications / H.-J. Zimmermann. 2. rev. ed. Boston: Kluwer Academic Publishers, 1991.
MLA CitationZimmermann, H.-J. Fuzzy Set Theory: And Its Applications / H.-J. Zimmermann. 2. rev. ed. Boston: Kluwer Academic Publishers, 1991.
Warning: These citations may not always be 100% accurate.