APA Citation

Nigg, T., & Hörmann, K. (1978-1990). [Drachenloch ob Vättis]. [T. Nigg].

MLA Citation

Nigg, Toni, and Konrad Hörmann. [Drachenloch Ob Vättis]. [T. Nigg], 1978-1990.

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