APA (7th ed.) Zitazioa
Festinger, D., & et al. (2014). Contingency management for cocaine treatment: Cash vs. vouchers.
Chicago Style (17th ed.) Zitazioa
Festinger, D.S, eta et al. Contingency Management for Cocaine Treatment: Cash Vs. Vouchers. 2014.
MLA (9th ed.) Zitazioa
Festinger, D.S, eta et al. Contingency Management for Cocaine Treatment: Cash Vs. Vouchers. 2014.
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