APA
Arzaghi M. e. a., National Bureau Of Economic Research, . (2008). Economic Factors Underlying the Unbundling of Advertising Ag. Cambridge: NBER.
Chicago
Arzaghi Mohammad et al, National Bureau Of Economic Research, . 2008. Economic Factors Underlying the Unbundling of Advertising Ag. Cambridge: NBER.
Harvard
Arzaghi M. e. a., National Bureau Of Economic Research, . (2008). Economic Factors Underlying the Unbundling of Advertising Ag. Cambridge: NBER.
MLA
Arzaghi Mohammad et al, National Bureau Of Economic Research, . Economic Factors Underlying the Unbundling of Advertising Ag. Cambridge: NBER. 2008.