APA (7th ed.) Citation

Hale, M. E. (1976). A monograph of the lichen genus Pseudoparmelia lynge (Parmeliaceae). Smithsonian Institution.

Chicago Style (17th ed.) Citation

Hale, Mason E. A Monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae). Washington: Smithsonian Institution, 1976.

MLA (9th ed.) Citation

Hale, Mason E. A Monograph of the Lichen Genus Pseudoparmelia Lynge (Parmeliaceae). Smithsonian Institution, 1976.

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