Παραπομπή APA

Wagner, H. (1977). Principles of operations research.- 2nd ed (2nd ed.). Prentice Hall.

Παραπομπή Chicago Style

Wagner, H.M. Principles of Operations Research.- 2nd Ed. 2nd ed. New Delhi: Prentice Hall, 1977.

Παραπομπή MLA

Wagner, H.M. Principles of Operations Research.- 2nd Ed. 2nd ed. Prentice Hall, 1977.