APA (7th ed.) Citation

Harper, W. M. (1982). Operational research. Macdonald and Evans.

Chicago Style (17th ed.) Citation

Harper, William Massie. Operational Research. Estover, Plymouth: Macdonald and Evans, 1982.

MLA (9th ed.) Citation

Harper, William Massie. Operational Research. Macdonald and Evans, 1982.