APA (7th ed.) Citation

Oeftering, T., Fleck, M., & Papastefanou, G. (2011). GESIS-Technical Reports. GESIS.

Chicago Style (17th ed.) Citation

Oeftering, Thomas, Matthias Fleck, and Georgios Papastefanou. GESIS-Technical Reports. Mannheim: GESIS, 2011.

MLA (8th ed.) Citation

Oeftering, Thomas, et al. GESIS-Technical Reports. GESIS, 2011.

Warning: These citations may not always be 100% accurate.