Cita APA (7th ed.)
SIMPSON, L., & SUTTON, M. (1998). AN ALTERNATIVE APPROACH TO DRUG POLICY OUTCOME MEASUREMENT.
Cita Chicago (17th ed.)
SIMPSON, L., i M. SUTTON. AN ALTERNATIVE APPROACH TO DRUG POLICY OUTCOME MEASUREMENT. 1998.
Cita MLA (9th ed.)
SIMPSON, L., i M. SUTTON. AN ALTERNATIVE APPROACH TO DRUG POLICY OUTCOME MEASUREMENT. 1998.
Atenció: Aquestes cites poden no estar 100% correctes.