Lua APA (7ú heag.)
Zimmermann, H. J. (1996). Fuzzy set theory and its applications (2nd ed.). Allied Pub.
Lua i Stíl Chicago (17ú heag.)
Zimmermann, H. J. Fuzzy Set Theory and Its Applications. 2nd ed. Calcutta: Allied Pub, 1996.
Lua MLA (9ú heag.)
Zimmermann, H. J. Fuzzy Set Theory and Its Applications. 2nd ed. Allied Pub, 1996.
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