APA

U.S. Cwnsus Bureau, .2002 Economic census. Washington,D.C: U.S. Dept. of Commerce, Economics and Statistics Administration.

Chicago

U.S. Cwnsus Bureau, .2002 Economic census. Washington,D.C: U.S. Dept. of Commerce, Economics and Statistics Administration.

Harvard

U.S. Cwnsus Bureau, .2002 Economic census. Washington,D.C: U.S. Dept. of Commerce, Economics and Statistics Administration.

MLA

U.S. Cwnsus Bureau, .Washington,D.C: U.S. Dept. of Commerce, Economics and Statistics Administration. .