APA (7th ed.) Citation

Hansen, A. (1973). Some floristic notes from Gran Canaria ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Hansen, Alfred. Some Floristic Notes from Gran Canaria. [Sonderdr.]. 1973.

MLA (9th ed.) Citation

Hansen, Alfred. Some Floristic Notes from Gran Canaria. [Sonderdr.]. 1973.

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