TY  - BOOK
AU  - Hawksworth,D.L.
AU  - Rose,Francis
TI  - Lichens as pollution monitors
T2  - Institute of Biology's studies in biology
U1  - 589 
PY  - 1976///
CY  - London
PB  - Edward Arnold
KW  - Lichens
KW  - Plants, Effect of pollution on
KW  - Plant indicators
KW  - Pollution
KW  - Measurement
KW  - Great Britain
KW  - Air
ER  -