APA استشهاد

Pitelis,Christos. (1993). Transaction costs,markets and heirarchies. Blackwell.

استشهاد بنمط شيكاغو

Pitelis,Christos. Transaction Costs,markets and Heirarchies. Oxford: Blackwell, 1993.

MLA استشهاد

Pitelis,Christos. Transaction Costs,markets and Heirarchies. Blackwell, 1993.