TY  - BOOK
AU  - Cleal, Christopher J., ed.
TI  - Plant fossils in geological investigation: the palaeozoic /ed. by Christopher J. Cleal
T2  - Ellis Horwood Series in Applied Geology
SN  - 0136808778
U1  - 561 
PY  - 1991///
CY  - New York
PB  - Ellis Horwood
ER  -