APA (7th ed.) Zitazioa
Singer, M., & Page, J. B. (2013). The social value of drug addicts: Uses of the useless. Left Coast Press.
Chicago Style (17th ed.) Zitazioa
Singer, Merrill, eta J. Bryan Page. The Social Value of Drug Addicts: Uses of the Useless. Walnut Creek, California: Left Coast Press, 2013.
MLA (9th ed.) Zitazioa
Singer, Merrill, eta J. Bryan Page. The Social Value of Drug Addicts: Uses of the Useless. Left Coast Press, 2013.
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