Cita APA (7a ed.)

Hofer, H. v., & Hofer, H. v. (1997). Nordic criminal statistics Nordic criminal statistics.

Cita Chicago Style (17a ed.)

Hofer, Hanns von, y Hanns von Hofer. "Nordic Criminal Statistics." Nordic Criminal Statistics 1997.

Cita MLA (8a ed.)

Hofer, Hanns von, y Hanns von Hofer. "Nordic Criminal Statistics." Nordic Criminal Statistics, 1997.