@techreport{NBERw12969,
 title = "Buffalo Hunt: International Trade and the Virtual Extinction of the North American Bison",
 author = "M. Scott Taylor",
 institution = "National Bureau of Economic Research",
 type = "Working Paper",
 series = "Working Paper Series",
 number = "12969",
 year = "2007",
 month = "March",
 URL = "http://www.nber.org/papers/w12969",
}