TY  - BOOK
AU  - CHANLETT Emil T
TI  - Environmental protection
T2  - Mcgraw-Hill series in water resources and enviornmental engineering
SN  - 0070105200
U1  - U47, L3/TD3 
PY  - 1973///
CY  - New York
PB  - McGraw Hill USA       
KW  - Human Geography
N1  - Appendix p. 549-54; Bibliography Chapterwise
ER  -