APA (7th ed.) Citation

Vega, W. A., & Gil, A. G. (1998). Drug use and ethnicity in early adolescence. Plenum.

Chicago Style (17th ed.) Citation

Vega, William A., and Andres G. Gil. Drug Use and Ethnicity in Early Adolescence. New York [u.a.]: Plenum, 1998.

MLA (8th ed.) Citation

Vega, William A., and Andres G. Gil. Drug Use and Ethnicity in Early Adolescence. Plenum, 1998.