APA-viite (7. p.)
Barrett, D., & Veerman, P. E. (2012). Article 33: Protection from narcotic drugs and psychotropic substances. Martinus Nijhoff Publishers.
Chicago-viite (17. p.)
Barrett, Damon, ja Philip E. Veerman. Article 33: Protection from Narcotic Drugs and Psychotropic Substances. Leiden ; Boston: Martinus Nijhoff Publishers, 2012.
MLA-viite (9. p.)
Barrett, Damon, ja Philip E. Veerman. Article 33: Protection from Narcotic Drugs and Psychotropic Substances. Martinus Nijhoff Publishers, 2012.
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