APA
Agrawal A. K., National Bureau of Economic Research, Catalini C. & Goldfarb A. (2011). The Geography of crowdfunding. Cambridge: NBER.
Chicago
Agrawal Ajay K, National Bureau of Economic Research, Catalini Christian and Goldfarb Avi. 2011. The Geography of crowdfunding. Cambridge: NBER.
Harvard
Agrawal A. K., National Bureau of Economic Research, Catalini C. and Goldfarb A. (2011). The Geography of crowdfunding. Cambridge: NBER.
MLA
Agrawal Ajay K, National Bureau of Economic Research, Catalini Christian and Goldfarb Avi. The Geography of crowdfunding. Cambridge: NBER. 2011.