Παραπομπή σε μορφή APA (7η εκδ.)

Heyman, R. (1994). Why Didn't you say that in the first place?: : how to be understood at work. Jossey-Bass.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. San Francisco: Jossey-Bass, 1994.

Παραπομπή σε μορφή MLA (9th εκδ.)

Heyman, Richard. Why Didn't You Say That in the First Place?: : How to Be Understood at Work. Jossey-Bass, 1994.