Neyland, R. (2011). A field guide to the ferns and lycophytes of Louisiana, including east Texas, southern Arkansas, and Mississippi. Louisiana State University Press.
Dyfyniad Arddull ChicagoNeyland, 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.
Dyfyniad MLANeyland, Ray. A Field Guide to the Ferns and Lycophytes of Louisiana, Including East Texas, Southern Arkansas, and Mississippi. Louisiana State University Press, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.