APA (7th ed.) Citation

Smith, W. G. (1914). Notes on Danish vegetation ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Smith, William G. Notes on Danish Vegetation. [Sonderdr.]. 1914.

MLA (9th ed.) Citation

Smith, William G. Notes on Danish Vegetation. [Sonderdr.]. 1914.

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