APA
Decarolis F., National Bureau of Economic Research, Goldmanis M. & Penta A. (2017). Marketing agencies and collusive bidding in online ad auctions. Cambridge: NBER.
Chicago
Decarolis Francesco, National Bureau of Economic Research, Goldmanis Maris and Penta Antonio. 2017. Marketing agencies and collusive bidding in online ad auctions. Cambridge: NBER.
Harvard
Decarolis F., National Bureau of Economic Research, Goldmanis M. and Penta A. (2017). Marketing agencies and collusive bidding in online ad auctions. Cambridge: NBER.
MLA
Decarolis Francesco, National Bureau of Economic Research, Goldmanis Maris and Penta Antonio. Marketing agencies and collusive bidding in online ad auctions. Cambridge: NBER. 2017.