APA (7th ed.) Citation

Schmidle, W. (1899). Vier neue Süßwasseralgen.

Chicago Style (17th ed.) Citation

Schmidle, Wilhelm. Vier Neue Süßwasseralgen. [S.l.], 1899.

MLA (9th ed.) Citation

Schmidle, Wilhelm. Vier Neue Süßwasseralgen. 1899.

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