APA Citation

Harpen, W. M., & Lim H. C. (1982). Operational research (2nd. ed.). London: Pitman Publishing.

Chicago Style Citation

Harpen, W. M., and Lim H. C. Operational Research. 2nd. ed. London: Pitman Publishing, 1982.

MLA Citation

Harpen, W. M., and Lim H. C. Operational Research. 2nd. ed. London: Pitman Publishing, 1982.

Warning: These citations may not always be 100% accurate.