Cita APA (7a ed.)

Jansen, C. R., & Korr Johansen, E. (1975). The Study of Unemployment: Remarks Based on Unemployment Reserach in 19th Century Denmark. Cish Aha.

Cita Chicago Style (17a ed.)

Jansen, Christian R., y Erik Korr Johansen. The Study of Unemployment: Remarks Based on Unemployment Reserach in 19th Century Denmark. [S.l.]: Cish Aha, 1975.

Cita MLA (9a ed.)

Jansen, Christian R., y Erik Korr Johansen. The Study of Unemployment: Remarks Based on Unemployment Reserach in 19th Century Denmark. Cish Aha, 1975.