The fern guide : a field guide to the ferns, clubmosses, quillworts and horsetails of the British Isles /
Merryweather, James,author,illustrator.
Hill, Michael,illustrator.
Roberts, Carol(Freelance artist),illustrator.
Field Studies Council (Great Britain)
Field Studies Council (Great Britain).AIDGAP Project.
"The AIDGAP Project"--P. 3 of cover.
Publisher's no. OP117.
Includes bibliographical references and index.
Pteridophyta
Botany