TY  - BOOK
AU  - Lenihan John
AU  -  Fletcher William W
TI  - Measuring and monitary the environment
T2  - Environment and Man.7
U1  - U:(G:55), L8 
PY  - 1977///
CY  - Glasgow
PB  - Blackie          
KW  - Geography- Environment
N1  - Bibliography chapterwise
ER  -