APA (7th ed.) Citation

Ludz, P. C., & Ludz, P. C. (1979). Geheime Gesellschaften: 1. Geheime Gesellschaften.

Chicago Style (17th ed.) Citation

Ludz, Peter Christian, and Peter Christian Ludz. "Geheime Gesellschaften: 1." Geheime Gesellschaften 1979.

MLA (8th ed.) Citation

Ludz, Peter Christian, and Peter Christian Ludz. "Geheime Gesellschaften: 1." Geheime Gesellschaften, 1979.

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