TY  - BOOK
AU  - Ashworth,William
TI  - The late, Great Lakes an environmental history
SN  - 0394551516
U1  - 363.7394 A831L 1986 
PY  - 1986///
CY  - New York
PB  - Knopf, Distributed by Random House
KW  - Water
KW  - Pollution
KW  - Environmental aspects
KW  - Great Lakes  (North America)
KW  - History
KW  - Lake ecology
KW  - Great Lakes (North America)
N1  - Map on lining papers; Includes index
ER  -