Here are some book titles to get you started. This is not an exhaustive list!
Swedish settlements in southwestern Iowa: with biographies of business and professional men of Swedish descent.
Nelson, O. M., 1938.
Swedes in Sioux City and vicinity; a brief history of the activities of the Swedes in this territory and biographies of business and professional men and women of Swedish descent.
Nelson, O. M., 1938.
Rock Island County, Illinois, Farm Plat Book and Business Guide: 1950
Rockford Map Publishers, 1950.
Atlas of Rock Island County, Illinois, containing maps of villages, cities, and townships of the county, maps of state, United States, and world: farmers directory, business directory, general information, plus New index to atlas
Iowa Publishing Company, 1976.
On location-- : images of Swedish entrepreneurship in North America
Blome, Goran.; Pehrson, Lennart; 1996.
An economic history of Sweden
Heckscher, Eli F., 1963.
Yankee, Swedish, and Italian acculturation and economic mobility in Jamestown, New York, from 1860 to 1920
Spengler, Paul A., 1980.
Immigration and labor; the economic aspects of European immigration to the United States.
Hourwich, Isaac Aaronovich, 1912.
Swedish life in American cities
Blanck, Dag; Runblom, Harald; Gustafson, Anita Olson; 1991.
Beyond the welfare state; economic planning and its international implications.
Myrdal, Gunnar, 1960.
Railroading and labor migration: class and ethnicity in expanding capitalism in Northern Minnesota, the 1880s to the mid 1920s.
Engren, Jimmy, 2007.