APA (7th ed.) Citation

Hansen, A. (1979). Some floristic notes from Canary Islands ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Hansen, Alfred. Some Floristic Notes from Canary Islands. [Sonderdr.]. 1979.

MLA (9th ed.) Citation

Hansen, Alfred. Some Floristic Notes from Canary Islands. [Sonderdr.]. 1979.

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