APA (7th ed.) Citation

Jenkins, A. E. (1942). A new species of Sphaceloma on Poinsettia ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Jenkins, Anna E. A New Species of Sphaceloma on Poinsettia. [Sonderdr.]. 1942.

MLA (9th ed.) Citation

Jenkins, Anna E. A New Species of Sphaceloma on Poinsettia. [Sonderdr.]. 1942.

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