APA-viite (7. p.)

Neyland, R. (2011). A field guide to the ferns and lycophytes of Louisiana, including east Texas, southern Arkansas, and Mississippi. Louisiana State University Press.

Chicago-viite (17. p.)

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.

MLA-viite (9. p.)

Neyland, Ray. A Field Guide to the Ferns and Lycophytes of Louisiana, Including East Texas, Southern Arkansas, and Mississippi. Louisiana State University Press, 2011.