APA (7th ed.) Citation
(1981). Operational research '81: Proceedings of the 9. IFORS international conference on operational research. North-Holland Pub. Co.
Chicago Style (17th ed.) Citation
Operational Research '81: Proceedings of the 9. IFORS International Conference on Operational Research. Amsterdam: North-Holland Pub. Co, 1981.
MLA (9th ed.) Citation
Operational Research '81: Proceedings of the 9. IFORS International Conference on Operational Research. North-Holland Pub. Co, 1981.
Warning: These citations may not always be 100% accurate.