Cita APA (7a ed.)

Hoffmann, R., & Friedrich, V. (2010). Developing countries: Case studies ; intermediate level (Dr. A 1.). Westermann.

Cita Chicago Style (17a ed.)

Hoffmann, Reinhard, y Volker Friedrich. Developing Countries: Case Studies ; Intermediate Level. Dr. A 1. Braunschweig: Westermann, 2010.

Cita MLA (9a ed.)

Hoffmann, Reinhard, y Volker Friedrich. Developing Countries: Case Studies ; Intermediate Level. Dr. A 1. Westermann, 2010.