Παραπομπή APA

Haley, K. (1979). Journal of operational reserach society. O.R. Society.

Παραπομπή Chicago Style

Haley, K.B. Journal of Operational Reserach Society. Brimingham: O.R. Society, 1979.

Παραπομπή MLA

Haley, K.B. Journal of Operational Reserach Society. O.R. Society, 1979.