APA (7th ed.) Citation

Zimmer, B. (1989). Adiantum isthmicum, a new fern species from Panama ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Zimmer, Brigitte. Adiantum Isthmicum, a New Fern Species from Panama. [Sonderdr.]. 1989.

MLA (9th ed.) Citation

Zimmer, Brigitte. Adiantum Isthmicum, a New Fern Species from Panama. [Sonderdr.]. 1989.

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