American Fern Society
Irving W. Knobloch, Lenette R. Atkinson, LeRoy K. Henry, Dorothy L. Pearth, P. Whittier, Neill D. Hall and James D. MontgomeryVolume:
59
Language:
english
Journal:
American Fern Journal
DOI:
10.2307/1546022
Date:
April, 1969
File:
PDF, 960 KB
english, 1969