Cita APA (7a ed.)

Entorf, H., Spengler, H., Entorf, H., & Spengler, H. (2004). The European regional crime database: Data from the book "Crime in Europe". Darmstadt discussion papers in economics.

Cita Chicago Style (17a ed.)

Entorf, Horst, Hannes Spengler, Horst Entorf, y Hannes Spengler. "The European Regional Crime Database: Data from the Book "Crime in Europe"." Darmstadt Discussion Papers in Economics 2004.

Cita MLA (8a ed.)

Entorf, Horst, et al. "The European Regional Crime Database: Data from the Book "Crime in Europe"." Darmstadt Discussion Papers in Economics, 2004.