Cita APA (7a ed.)

Heckel, R. V., & Shumaker, D. M. (2001). Children who murder: A psychological perspective. Praeger.

Cita Chicago Style (17a ed.)

Heckel, Robert V., y David M. Shumaker. Children Who Murder: A Psychological Perspective. Westport, Conn. [u.a.]: Praeger, 2001.

Cita MLA (8a ed.)

Heckel, Robert V., y David M. Shumaker. Children Who Murder: A Psychological Perspective. Praeger, 2001.