Zimmermann, H. (1991). Fuzzy set theory - and its applications / H.-J. Zimmermann (2nd rev. ed.). Kluwer Academic Publishers.
Chicago Style (17th ed.) CitationZimmermann, H.-J. Fuzzy Set Theory - and Its Applications / H.-J. Zimmermann. 2nd rev. ed. Boston ; London: Kluwer Academic Publishers, 1991.
MLA (9th ed.) CitationZimmermann, H.-J. Fuzzy Set Theory - and Its Applications / H.-J. Zimmermann. 2nd rev. ed. Kluwer Academic Publishers, 1991.
Warning: These citations may not always be 100% accurate.