- Sigrid Undset: Chronicler of Norway (Berg Women's Series) by Mitzi Brunsdale, 1989-02
- Sigrid Undset: Kristentro og kirkesyn (Norwegian Edition) by Finn Thorn, 1975
- Jenny, a Novel by Sigrid Undset, 1921
- Kristin Lavransdatter: The bridal wreath, The mistress of Husaby, The cross by Sigrid Undset, 1930
- Sigrid Undset: On Saints and Sinners (Proceedings of the Wethersfield Institute)
- Redefining Integrity: The Portrayal of Women in the Contemporary Novels of Sigrid Undset (Europaische Hochschulschriften Reihe I, Deutsche Sprache Und Literatur) by Elisabeth Solbakken, 1992-05
- Six Scandinavian Novelists: Lie, Jacobsen, Heidenstam, Selma Lagerlof, Hamsum, Sigrid Undset by Alrik Gustafson, 1968-06
- Sigrid Undset, et liv (Norwegian Edition) by Gidske Anderson, 1989
- Paradigms and Paradoxes in the Life and Letters of Sigrid Undset by Sister Margaret Dunn, 1993-12-22
- Sigrid Undset: A Study in Christian Realism by Andreas Hofgaard Winsnes, 1970-12-16
- Sigrid Undset (Twayne's World Authors Series, No. 107, Norway) by Carl Frank Bayerschmidt, 1970-06
- Menneskenes hjerter: Sigrid Undset, en livshistorie (Norwegian Edition) by Tordis Ørjasæter, 1993
- Sigrid Undset in America by Marie Maman, 2000-11-15
- Livssyn og digtning: Strukturgrundlaget i Sigrid Undsets romaner (Bøker om bøker) (Norwegian Edition) by Bente Heltoft, 1985
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