Franklin

MLA

County Business Patterns, 1999 [united States]: U.s. Summary, State, and County Data. Ann Arbor, Mich.: Inter-university Consortium for Political and Social Research [distributor], 2003.

APA

(2003). County Business Patterns, 1999 [United States]: U.S. Summary, State, and County Data. Ann Arbor, Mich.: Inter-university Consortium for Political and Social Research [distributor].

Chicago

County Business Patterns, 1999 [united States]: U.S. Summary, State, and County Data. Ann Arbor, Mich.: Inter-university Consortium for Political and Social Research [distributor], 2003.