Cita APA (7th ed.)

Holtermann, L., & Otto, A. H. (2015). HWWI Policy Report.

Cita Chicago (17th ed.)

Holtermann, Linus, i Alkis Henri Otto. HWWI Policy Report. Hamburg, 2015.

Cita MLA (8th ed.)

Holtermann, Linus, i Alkis Henri Otto. HWWI Policy Report. 2015.