Heyman, R. (1994). Why Didn't you say that in the first place?: : how to be understood at work. Jossey-Bass.
Чикаго стиль цитування (17-те видання)Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. San Francisco: Jossey-Bass, 1994.
Стиль цитування MLA (9-ме видання)Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. Jossey-Bass, 1994.
Попередження: стилі цитування не завжди правильні на всі 100%.