Cita APA (7th ed.)

Bräuninger, M., Otto, A. H., & Stiller, S. (2010). HWWI Policy Paper.

Cita Chicago (17th ed.)

Bräuninger, Michael, Alkis Henri Otto, i Silvia Stiller. HWWI Policy Paper. 2010.

Cita MLA (8th ed.)

Bräuninger, Michael, et al. HWWI Policy Paper. 2010.