TY  - BOOK
AU  - White, L. D.
AU  - Mottershead, D. N.
AU  - Harrison, Steven John
TI  - Environmental systems: an introductory text 
SN  - 0748740813
U1  - 91: 551 WHI 
PY  - 1998///
CY  - Cheltenham
PB  - Stanley Thornes
KW  - Physical geography
KW  - Natural history
N1  - Includes bibliographical references and index
ER  -