Παραπομπή APA

Zimmermann, H., & Zimmermann, H. (1996). Fuzzy sets and decision analysis. Allied publishers.

Παραπομπή Chicago Style

Zimmermann, H.J, και H.-J Zimmermann. Fuzzy Sets and Decision Analysis. New Delhi: Allied publishers, 1996.

Παραπομπή MLA

Zimmermann, H.J, και H.-J Zimmermann. Fuzzy Sets and Decision Analysis. Allied publishers, 1996.