Παραπομπή APA

Williams, H. P. (1999). Model building in mathematical programming (4th ed.). Chichester New York: Wiley.

Παραπομπή Chicago Style

Williams, H. P. Model Building in Mathematical Programming. 4th ed. Chichester New York: Wiley, 1999.

Παραπομπή MLA

Williams, H. P. Model Building in Mathematical Programming. 4th ed. Chichester New York: Wiley, 1999.

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