Nussle, Jim (2008-11-20). "Micropolitan Statistical Areas"(PDF). List 1-9. Office of Management and Budget, Executive Office of the President. p. 97. Archived from the original(PDF) on 2010-04-01. Retrieved 2010-04-02.
Nussle, Jim (2008-11-20). "Micropolitan Statistical Areas"(PDF). List 1-9. Office of Management and Budget, Executive Office of the President. p. 97. Archived from the original(PDF) on 2010-04-01. Retrieved 2010-04-02.