APA (7th ed.) Citation

Mitchell, G., & Mitchell, G. H. (1972). Operational research: Techniques and examples. English Universities Press.

Chicago Style (17th ed.) Citation

Mitchell, George, and George Henry Mitchell. Operational Research: Techniques and Examples. London,: English Universities Press, 1972.

MLA (8th ed.) Citation

Mitchell, George, and George Henry Mitchell. Operational Research: Techniques and Examples. English Universities Press, 1972.