Clements, K. W., & Zhao, X. (2009). Economics and marijuana: Consumption, pricing and legalisation. Cambridge University Press. https://doi.org/10.1017/CBO9780511657436
Lua i Stíl Chicago (17ú heag.)Clements, Kenneth W., agus Xueyan Zhao. Economics and Marijuana: Consumption, Pricing and Legalisation. Cambridge: Cambridge University Press, 2009. https://doi.org/10.1017/CBO9780511657436.
Lua MLA (9ú heag.)Clements, Kenneth W., agus Xueyan Zhao. Economics and Marijuana: Consumption, Pricing and Legalisation. Cambridge University Press, 2009. https://doi.org/10.1017/CBO9780511657436.
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