Heyman, R. (1994). Why Didn't you say that in the first place?: : how to be understood at work. Jossey-Bass.
Cita Chicago (17th ed.)Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. San Francisco: Jossey-Bass, 1994.
Cita MLA (9th ed.)Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. Jossey-Bass, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.