APA (7th ed.) Citation

Esslinger, T. L., & Ahti, T. (1973). The typification of Parmelia prolixa and Parmelia pulla ([Sonderdr.].).

Chicago Style (17th ed.) Citation

Esslinger, Theodore L., and Teuvo Ahti. The Typification of Parmelia Prolixa and Parmelia Pulla. [Sonderdr.]. 1973.

MLA (9th ed.) Citation

Esslinger, Theodore L., and Teuvo Ahti. The Typification of Parmelia Prolixa and Parmelia Pulla. [Sonderdr.]. 1973.

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