Pitelis,Christos. (1993). Transaction costs,markets and heirarchies. Blackwell.
Chicago Style aipamenaPitelis,Christos. Transaction Costs,markets and Heirarchies. Oxford: Blackwell, 1993.
MLA aipamenaPitelis,Christos. Transaction Costs,markets and Heirarchies. Blackwell, 1993.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.