Cita APA (7a ed.)

Lucassen, L. (1997). Harmful tramps. Police professionalization and gypsies in Germany, 1700-1945. Crime, histoire & sociétés, 1(1), 29-50.

Cita Chicago Style (17a ed.)

Lucassen, Leo. "Harmful Tramps. Police Professionalization and Gypsies in Germany, 1700-1945." Crime, Histoire & Sociétés 1, no. 1 (1997): 29-50.

Cita MLA (9a ed.)

Lucassen, Leo. "Harmful Tramps. Police Professionalization and Gypsies in Germany, 1700-1945." Crime, Histoire & Sociétés, vol. 1, no. 1, 1997, pp. 29-50.