APA (7th ed.) Citation

Morris, W., & Morris, M. (1985). Harper dictionary of contemporary usage. Harper and Row.

Chicago Style (17th ed.) Citation

Morris, William, and Mary Morris. Harper Dictionary of Contemporary Usage. New York: Harper and Row, 1985.

MLA (9th ed.) Citation

Morris, William, and Mary Morris. Harper Dictionary of Contemporary Usage. Harper and Row, 1985.