APA (7th ed.) Citation

Roll, H. (1939). Zur Terminologie des Periphytons ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Roll, Hartwig. Zur Terminologie Des Periphytons. [Sonderdr.]. 1939.

MLA (9th ed.) Citation

Roll, Hartwig. Zur Terminologie Des Periphytons. [Sonderdr.]. 1939.

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