APA (7th ed.) Citation

Schmitt, O. (1951). Zur Datierung des Externsteinreliefs.

Chicago Style (17th ed.) Citation

Schmitt, Otto. Zur Datierung Des Externsteinreliefs. 1951.

MLA (9th ed.) Citation

Schmitt, Otto. Zur Datierung Des Externsteinreliefs. 1951.

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