Não informado. (1950). Operational Research Quarterly. Operational Research Club.
Chicago-Zitierstil (17. Ausg.)Não informado. Operational Research Quarterly. London: Operational Research Club, 1950.
MLA-Zitierstil (8. Ausg.)Não informado. Operational Research Quarterly. Operational Research Club, 1950.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.