APA
Greenstein S., . (1998). Universal service in the digital age : the commercialization and geography of us Internet access. Cambridge, Mass: National Bureau of Economic Research.
Chicago
Greenstein Shane, . 1998. Universal service in the digital age : the commercialization and geography of us Internet access. Cambridge, Mass: National Bureau of Economic Research.
Harvard
Greenstein S., . (1998). Universal service in the digital age : the commercialization and geography of us Internet access. Cambridge, Mass: National Bureau of Economic Research.
MLA
Greenstein Shane, . Universal service in the digital age : the commercialization and geography of us Internet access. Cambridge, Mass: National Bureau of Economic Research. 1998.