APA (7th ed.) Citation

Tryon, A. F., & Vida, G. (1967). Platyzoma: A new look at an old link in ferns ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Tryon, Alice F., and G. Vida. Platyzoma: A New Look at an Old Link in Ferns. [Sonderdr.]. 1967.

MLA (9th ed.) Citation

Tryon, Alice F., and G. Vida. Platyzoma: A New Look at an Old Link in Ferns. [Sonderdr.]. 1967.

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