Lichenology progress and problems: proceedings of an International Symposium held at the University of Bristol
Brown, D. H.(Dennis Hunter),1939-
Hawksworth, D. L.
Bailey, R. H.(Richard Henry),1937-
British Lichen Society.
London Academic Press for the Systematics Association and the British Lichen Society
1976
' ... this Symposium, held at the University of Bristol on 8-10 April 1974' - Preface
Includes bibliographies and index
Lichens.