Cita APA (7a ed.)

Singer, M., & Singer, M. (2005). New drugs on the street: Changing inner city patterns of illicit consumption. Haworth Press.

Cita Chicago Style (17a ed.)

Singer, Merrill, y Merrill Singer. New Drugs on the Street: Changing Inner City Patterns of Illicit Consumption. New York [u.a.]: Haworth Press, 2005.

Cita MLA (8a ed.)

Singer, Merrill, y Merrill Singer. New Drugs on the Street: Changing Inner City Patterns of Illicit Consumption. Haworth Press, 2005.