APA (7th ed.) Citation

Copeland, E. B. (1955). New Philippine ferns ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Copeland, Edwin Bingham. New Philippine Ferns. [Sonderdr.]. 1955.

MLA (9th ed.) Citation

Copeland, Edwin Bingham. New Philippine Ferns. [Sonderdr.]. 1955.

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