TY  - BOOK
AU  - Thomson,John Walter
TI  - The lichen genus Cladonia in North America
AV  - QK587 .T45
U1  - 589/.1 
PY  - 1967///]
CY  - Toronto
PB  - University of Toronto Press
KW  - Cladonia
KW  - Lichens
KW  - North America
N1  - Bibliography: p. [153]-158
ER  -