Gaya APA

Essen, M, V., Hankins, W, B. (2013). Tacit Collusion in Price-Setting Oligopoly:A Puzzle Redux . : Southern Economic Association.

Gaya MLA

Essen, Matt, Van., Hankins, William, B.. "Tacit Collusion in Price-Setting Oligopoly:A Puzzle Redux". : Southern Economic Association, 2013. e-journal.