APA (7th ed.) Citation

HARPER, W., & HARPER, W. (1975). Operational Research / W.m. Harper. MacDonald & Evans.

Chicago Style (17th ed.) Citation

HARPER, W.M, and W.M HARPER. Operational Research / W.m. Harper. MacDonald & Evans, 1975.

MLA (8th ed.) Citation

HARPER, W.M, and W.M HARPER. Operational Research / W.m. Harper. MacDonald & Evans, 1975.

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