TY  - BOOK
ED  - Conference held (
TI  - Conference in the matter of pollution of lake Michigan and its tributary basin
U1  -  363.730973 
PY  - 1971///-
CY  - Washington, D. C.
PB  - United States Government Printing Office
KW  - Pollution
KW  - Environmental aspects
KW  - United States
KW  - Environmental protection
N1  - Library has vol. 2
ER  -