APA-viite (7. p.)
ElSohly, M., & et al. (2020). Changes in cannabis potency over the last 2 decades (1995–2014): Analysis of current data in the United States.
Chicago-viite (17. p.)
ElSohly, M.A, ja et al. Changes in Cannabis Potency over the Last 2 Decades (1995–2014): Analysis of Current Data in the United States. 2020.
MLA-viite (9. p.)
ElSohly, M.A, ja et al. Changes in Cannabis Potency over the Last 2 Decades (1995–2014): Analysis of Current Data in the United States. 2020.
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