At head of title: "Agricultural Watershed Studies, Task Group C, Activity 1, International Reference Group on Great Lakes Pollution from Land Use Acti...
At head of title: "Agricultural Watershed Studies, Task Group C, Activity 1, International Reference Group on Great Lakes Pollution from Land Use Activity."
"March 1978."
Physical description for original version: vii, 29 p. : 28 cm
書誌注記
Bibliography: p. 26-29
原資料等に関する注記
原資料の出版事項: Windsor, Ont. : International Reference Group on Great Lakes Pollution from Land Use Activities, International Joint Commission, [1978]