@book{bhlitem99840, title = {American fern journal }, volume = {v.50-51(1960-1961)}, copyright = {In copyright. Digitized with the permission of the rights holder.}, url = {https://www.biodiversitylibrary.org/item/99840}, note = {https://www.biodiversitylibrary.org/bibliography/43943}, publisher = {[Washington, etc.] American Fern Society}, author = {American Fern Society.}, year = {1960}, pages = {544}, keywords = {Ferns|Periodicals|Pteridophyta}, }