Citação norma APA

WHO Expert Committee on Drug Dependence. (1999). WHO Expert Committee on Drug Dependence: Twenty-first report. World Health Organization.

Citação norma Chicago

WHO Expert Committee on Drug Dependence. WHO Expert Committee on Drug Dependence: Twenty-first Report. Geneva: World Health Organization, 1999.

Citação norma MLA

WHO Expert Committee on Drug Dependence. WHO Expert Committee on Drug Dependence: Twenty-first Report. World Health Organization, 1999.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.