SIC (STANDARD INDUSTRIAL CLASSIFICATION) is a U. S. Government numerical coding system used in the U. S. To group and classify basically all products and services existing within the U. S. Economy.
Barry Goldsmith
| APA | Barry Goldsmith. (2010). SIC (STANDARD INDUSTRIAL CLASSIFICATION). Retrieved September 21, 2026, from http://smartdefine.org/sic_(standard_industrial_classification)/definitions/1163556 |
| Chicago | Barry Goldsmith. 2010. "SIC (STANDARD INDUSTRIAL CLASSIFICATION)" http://smartdefine.org/sic_(standard_industrial_classification)/definitions/1163556 (accessed September 21, 2026). |
| Harvard | Barry Goldsmith 2010, SIC (STANDARD INDUSTRIAL CLASSIFICATION), Smart Define, viewed 21 September, 2026, <http://smartdefine.org/sic_(standard_industrial_classification)/definitions/1163556>. |
| MLA | Barry Goldsmith. "SIC (STANDARD INDUSTRIAL CLASSIFICATION)" 21 October 2010. Web. 21 September 2026. <http://smartdefine.org/sic_(standard_industrial_classification)/definitions/1163556> |