Cita APA (7th ed.)

Jungnickel, R., & Keller, D. (2003). Foreign-owned Firms in the German Labour Market.

Cita Chicago (17th ed.)

Jungnickel, Rolf, i Dietmar Keller. Foreign-owned Firms in the German Labour Market. Hamburg, 2003.

Cita MLA (8th ed.)

Jungnickel, Rolf, i Dietmar Keller. Foreign-owned Firms in the German Labour Market. 2003.