APA-referens

Zimmermann, H. (1985). Fuzzy set theory and its applications. Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers.

Chicago-stil citat

Zimmermann, H.-J. Fuzzy Set Theory and Its Applications. Boston : Hingham, MA, U.S.A.: Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers, 1985.

MLA-referens

Zimmermann, H.-J. Fuzzy Set Theory and Its Applications. Kluwer-Nijhoff Pub. ; Distributors for North America, Kluwer Academic Publishers, 1985.