European Working Group "Multicriteria Aid for Decisions", Technical University of Crete, & University of Macedonia. (1998). 47emes journees du groupe de travail europeen "Aide multicritere a la decision" =: 47th meeting of the european working group "Multicriteria aid for decisions" : articles. [s.n.].
Παραπομπή σε μορφή Chicago (17η εκδ.)European Working Group "Multicriteria Aid for Decisions", Technical University of Crete, και University of Macedonia. 47emes Journees Du Groupe De Travail Europeen "Aide Multicritere a La Decision" =: 47th Meeting of the European Working Group "Multicriteria Aid for Decisions" : Articles. [s.l.]: [s.n.], 1998.
Παραπομπή σε μορφή MLA (9th εκδ.)European Working Group "Multicriteria Aid for Decisions", et al. 47emes Journees Du Groupe De Travail Europeen "Aide Multicritere a La Decision" =: 47th Meeting of the European Working Group "Multicriteria Aid for Decisions" : Articles. [s.n.], 1998.