Cita APA (7a ed.)

Campbell Collaboration & Egli, N. (2009). Effects of drug substitution programs on offending among drug-addicts. Campbell systematic reviews.

Cita Chicago Style (17a ed.)

Campbell Collaboration y Nicole Egli. "Effects of Drug Substitution Programs on Offending Among Drug-addicts." Campbell Systematic Reviews 2009.

Cita MLA (9a ed.)

Campbell Collaboration y Nicole Egli. "Effects of Drug Substitution Programs on Offending Among Drug-addicts." Campbell Systematic Reviews, 2009.