Παραπομπή APA

Ackoff, R. (1961). Progress in operations research. John Wiley.

Παραπομπή Chicago Style

Ackoff, R.L. Progress in Operations Research. New York: John Wiley, 1961.

Παραπομπή MLA

Ackoff, R.L. Progress in Operations Research. John Wiley, 1961.