Side-By-Side Comparisons Fern Relatives Help Acknowledgments Bibliography

Bibliography
Cobb, Boughton. Peterson Field Guide to Ferns. Ed. Roger T. Peterson. New York: Houghton Mifflin Company, 1984.

Hallowell, Anne C., and Barbara G. Hallowell. Fern Finder: a guide to native ferns of northeastern and central North America. New York: Nature Study Guild, 1981.

Ogden, Eugene C., Field Guide to Northeastern Ferns. New York: The University of the State of New York, 1981.