Bibliography of Ostergren, Robert Clifford, by subject:

•	Wisconsin -- Geography (3)
•	Geography -- Europe (2)
•	Europe -- Social conditions (2)
•	Europe -- Economic conditions (2)
•	Isanti County (Minn.) -- Emigration and immigration (2)
•	Swedes -- Minnesota -- Isanti County (2)
•	Rättvik (Sweden) -- Emigration and immigration (2)
•	Swedish Americans -- Minnesota -- Isanti County (2)
•	Immigrants -- Wisconsin -- History (1)
•	Germany -- Emigration and immigration (1)
•	Wisconsin -- Emigration and immigration (1)
•	Electronic books (1)
•	Wisconsin -- Historical geography (1)
•	German Americans -- Wisconsin -- History (1)
•	Seasonal labor -- Sweden -- Tuna -- History -- 19th century -- Case studies (1)
•	Seasonal labor -- Sweden -- Matfors -- History -- 19th century -- Case studies (1)
•	Sawmills -- Sweden -- Matfors -- History -- 19th century -- Case studies (1)
•	Germans -- Wisconsin -- History (1)