APA (7th ed.) Citation

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.

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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