Pettigrew, A. (2011). The Role, Power and Influence of Company Chairs.
Chicago Style aipamenaPettigrew, A. The Role, Power and Influence of Company Chairs. 2011.
MLA aipamenaPettigrew, A. The Role, Power and Influence of Company Chairs. 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.