APA (7th ed.) Citation

Ruf, H. (1987). Großhöhlen 1986.

Chicago Style (17th ed.) Citation

Ruf, Hans. Großhöhlen 1986. 1987.

MLA (9th ed.) Citation

Ruf, Hans. Großhöhlen 1986. 1987.

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