LLichens, An Illustrated GuideLichens, An Illustrated Guidede Frank DobsonEdiciones (1)Lichens, An Illustrated Guide (1981)The Richmond Publishing Co. Ltd · ISBN 9780855462109Más obras de Frank DobsonFFrank Dobson, 1886-1963Frank Dobson, 1886-19631966FFrank DobsonFrank Dobson1926TTrue and pureTrue and pure