TY  - BOOK
AU  - White,I.D.
AU  - Mottershead,D.N.
AU  - Harrison,S.John
TI  - Environmental systems: an introductory text 
SN  - 041247140X
AV  - GB54.5 .W48 1992
PY  - 1992///
CY  - London, New York
PB  - Chapman & Hall
KW  - Physical geography
KW  - Natural history
ER  -