APA (7th ed.) Citation

Steiner, S. (2015). Sonneberg/i. Thr. um 1900.

Chicago Style (17th ed.) Citation

Steiner, Siegfried. Sonneberg/i. Thr. Um 1900. Sonneberg?, 2015.

MLA (8th ed.) Citation

Steiner, Siegfried. Sonneberg/i. Thr. Um 1900. 2015.

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