APA (7th ed.) Citation

R. J. Richards. (1993). Solving problems in control. England.

Chicago Style (17th ed.) Citation

R. J. Richards. Solving Problems in Control. New York: England, 1993.

MLA (9th ed.) Citation

R. J. Richards. Solving Problems in Control. England, 1993.

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