APA (7th ed.) Citation

Frey, H., & Helbig, L. (1997). TatSache Politik. Diesterweg.

Chicago Style (17th ed.) Citation

Frey, Hans-Peter, and Ludwig Helbig. TatSache Politik. Frankfurt am Main: Diesterweg, 1997.

MLA (9th ed.) Citation

Frey, Hans-Peter, and Ludwig Helbig. TatSache Politik. Diesterweg, 1997.

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