APA-čujuhus (7. p.)
Cross, J. C., & Peña, S. Risk and regulation in informal and illegal markets.
Chicago-čujuhus (17. p.)
Cross, John C., juo Sergio Peña. Risk and Regulation in Informal and Illegal Markets.
MLA-čujuhus (9. p.)
Cross, John C., juo Sergio Peña. Risk and Regulation in Informal and Illegal Markets.
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