Cita APA (7th ed.)

Blumenberg, M. S., Roßmann, J., & Gummer, T. (2013). GESIS-Technical Reports. GESIS.

Cita Chicago (17th ed.)

Blumenberg, Manuela S., Joss Roßmann, i Tobias Gummer. GESIS-Technical Reports. Mannheim: GESIS, 2013.

Cita MLA (8th ed.)

Blumenberg, Manuela S., et al. GESIS-Technical Reports. GESIS, 2013.