APA (7th ed.) Citation

Morris, J., & Morris, C. (1990). Threshold. New American Library.

Chicago Style (17th ed.) Citation

Morris, Janet, and Chris Morris. Threshold. New York, N.Y.: New American Library, 1990.

MLA (9th ed.) Citation

Morris, Janet, and Chris Morris. Threshold. New American Library, 1990.

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