Cita APA (7th ed.)
CAULKINS, J., & ET AL. (1999). WHAT DRUG DEALERS TELL US ABOUT THEIR COSTS OF DOING BUSINESS.
Cita Chicago (17th ed.)
CAULKINS, J.P, i ET AL. WHAT DRUG DEALERS TELL US ABOUT THEIR COSTS OF DOING BUSINESS. 1999.
Cita MLA (9th ed.)
CAULKINS, J.P, i ET AL. WHAT DRUG DEALERS TELL US ABOUT THEIR COSTS OF DOING BUSINESS. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.