APA (7th ed.) Citation

Merrill, E. D. (1919). Additions to the flora of Guam ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Merrill, Elmer Drew. Additions to the Flora of Guam. [Sonderdr.]. 1919.

MLA (9th ed.) Citation

Merrill, Elmer Drew. Additions to the Flora of Guam. [Sonderdr.]. 1919.

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