Παραπομπή APA

Bell,David E, & Keeney,Ralph L. (1977). Conflicting objectives in decisions. John Walley & Sons.

Παραπομπή Chicago Style

Bell,David E, και Keeney,Ralph L. Conflicting Objectives in Decisions. New York: John Walley & Sons, 1977.

Παραπομπή MLA

Bell,David E, και Keeney,Ralph L. Conflicting Objectives in Decisions. John Walley & Sons, 1977.