APA (7th ed.) Citation

Du Rietz, G. E. (1929). The fundamental units of vegetation ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Du Rietz, Gustaf Einar. The Fundamental Units of Vegetation. [Sonderdr.]. 1929.

MLA (9th ed.) Citation

Du Rietz, Gustaf Einar. The Fundamental Units of Vegetation. [Sonderdr.]. 1929.

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