APA Citation

Helmer, H., & Fellner, F. (1876). Fellner u. Hellmer Thonethaus. [S.l.: s.n.

Chicago Style Citation

Helmer, Hermann, and Ferdinand Fellner. Fellner U. Hellmer Thonethaus. [S.l.: s.n, 1876.

MLA Citation

Helmer, Hermann, and Ferdinand Fellner. Fellner U. Hellmer Thonethaus. [S.l.: s.n, 1876.

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