TY  - BOOK
AU  - Butlin Robin A Ed.
AU  -  Roberts Neil Ed.
TI  - Ecological relations in historical times:  Human inpact and adaptation   
T2  - Institute of British Geographers special publicaitons ,32
U1  - U:(G:55), N5 
PY  - 1995///
CY  - Oxford
PB  - Blackwell          
KW  - Geography- Environment
N1  - Royal Geographical Society
ER  -