Παραπομπή σε μορφή APA (7η εκδ.)

CLARKE-EPSTEIN CHRIS. (2007). 78 IMPORTANT QUESTIONS EVERY LEADER SHOULD ASK AND ANSWER. PRENTICE HALL OF INDIA.

Παραπομπή σε μορφή Chicago (17η εκδ.)

CLARKE-EPSTEIN CHRIS. 78 IMPORTANT QUESTIONS EVERY LEADER SHOULD ASK AND ANSWER. NEW DELHI: PRENTICE HALL OF INDIA, 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

CLARKE-EPSTEIN CHRIS. 78 IMPORTANT QUESTIONS EVERY LEADER SHOULD ASK AND ANSWER. PRENTICE HALL OF INDIA, 2007.