Piper, T. R., Gentile, M. C., & Parks, S. D. (1993). Can ethics be taught?: Perspectives, challenges, and approaches at Harvard Business School. Harvard Business School.

Piper, Thomas R., Mary C. Gentile, and Sharon Daloz Parks. Can Ethics Be Taught?: Perspectives, Challenges, and Approaches at Harvard Business School. Boston, Mass.: Harvard Business School, 1993.

Piper, Thomas R., et al. Can Ethics Be Taught?: Perspectives, Challenges, and Approaches at Harvard Business School. Harvard Business School, 1993.