Rölvaag, O. Home-founding, from giants in the earth: Ole Rölvaag. The Midwest.(1979).
Chicago-Zitierstil (17. Ausg.)Rölvaag, Ole. "Home-founding, from Giants in the Earth: Ole Rölvaag." The Midwest.(1979) .
MLA-Zitierstil (8. Ausg.)Rölvaag, Ole. "Home-founding, from Giants in the Earth: Ole Rölvaag." The Midwest.(1979), .
警告：這些引文格式不一定是100％准確.