Cita APA (7a ed.)

Smart, R. G. (1980). A methodology for student drug-use surreys. World Health Organization.

Cita Chicago Style (17a ed.)

Smart, R. G. A Methodology for Student Drug-use Surreys. Geneva: World Health Organization, 1980.

Cita MLA (8a ed.)

Smart, R. G. A Methodology for Student Drug-use Surreys. World Health Organization, 1980.