Cita APA (7a ed.)

Doss, K. T., & Shepherd, C. D. (2015). Active shooter: Preparing for and responding to a growing threat. Elsevier.

Cita Chicago Style (17a ed.)

Doss, Kevin T., y C. David Shepherd. Active Shooter: Preparing for and Responding to a Growing Threat. Heidelberg: Elsevier, 2015.

Cita MLA (8a ed.)

Doss, Kevin T., y C. David Shepherd. Active Shooter: Preparing for and Responding to a Growing Threat. Elsevier, 2015.