REFERENCES
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- Substance Abuse and Mental Health Services Administration, Center for Behavioral Health Statistics and Quality. (2012). The NSDUH report: Accessing national and state data from the National Survey on Drug Use and Health. Rockville, MD: SAMHSA.
- U.S. Bureau of Labor Statistics (2012). National longitudinal survey program. Retrieved August 13, 2012, from http://www.bls.gov/nls/nlsy97.htm