APA
Organisation of American States, . (2013). The drug problem in the Americas : analytical report. S.l: Organisation of American States.
Chicago
Organisation of American States, . 2013. The drug problem in the Americas : analytical report. S.l: Organisation of American States.
Harvard
Organisation of American States, . (2013). The drug problem in the Americas : analytical report. S.l: Organisation of American States.
MLA
Organisation of American States, . The drug problem in the Americas : analytical report. S.l: Organisation of American States. 2013.
E-bron