Cita APA (7a ed.)

Anthony A. Braga, Sudhir Venkatesh, Philip J. Cook, & Jens Ludwig. Underground Gun Markets.

Cita Chicago Style (17a ed.)

Anthony A. Braga, Sudhir Venkatesh, Philip J. Cook, y Jens Ludwig. Underground Gun Markets.

Cita MLA (9a ed.)

Anthony A. Braga, et al. Underground Gun Markets.