Neyland, R. (2011). A field guide to the ferns and lycophytes of Louisiana, including east Texas, southern Arkansas, and Mississippi. Louisiana State University Press.
Lua i Stíl Chicago (17ú heag.)Neyland, Ray. A Field Guide to the Ferns and Lycophytes of Louisiana, Including East Texas, Southern Arkansas, and Mississippi. Baton Rouge: Louisiana State University Press, 2011.
Lua MLA (9ú heag.)Neyland, Ray. A Field Guide to the Ferns and Lycophytes of Louisiana, Including East Texas, Southern Arkansas, and Mississippi. Louisiana State University Press, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.