TY  - BOOK
AU  - Hawksworth David L
AU  -  Hill David J
TI  - Lichen-forming fungi
T2  - Tertiary level biology
U1  - I27, M4 
PY  - 1984///
CY  - Glasgow
PB  - Blackie         
KW  -  Lichen
KW  - Botany
ER  -