See, for example, the American Institute of Architects' Code of Ethics and Professional Conduct at www.aiaonline.com; the American Institute for Certified Public Accountants' Code of Professional Conduct at www.aicpa.org; the National Society of Professional Engineers' Code of Ethics for Engineers at www.nspe.org; the American Society of Mechanical Engineers' Code of Ethics of Engineers at www.asme.org; and the Institute of Electrical and Electronics Engineers' Code of Ethics at www.ieee.org. Current links for each of these ethics codes are available from my company's Web site at www.construx.com/profession.
See, for example, the National Society of Professional Engineers' Code of Ethics for Engineers at www.nspe.org.
Reported in Tom DeMarco and Timothy Lister, Peopleware: Productive Projects and Teams, 2d Ed., New York: Dorset House, 1999.