Silverman, K., & Robles, E. (1998). Employment as a drug treatment intervention: A behavioral economic analysis. National Bureau of Economic Research.
Citazione stile Chigago Style (17a edizione)Silverman, Kenneth, e Elias Robles. Employment as a Drug Treatment Intervention: A Behavioral Economic Analysis. Cambridge: National Bureau of Economic Research, 1998.
Citatione MLA (9a ed.)Silverman, Kenneth, e Elias Robles. Employment as a Drug Treatment Intervention: A Behavioral Economic Analysis. National Bureau of Economic Research, 1998.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.