Columbia subject headings:
Domestic fiction.
Historical fiction.
Oklahoma--Fiction.
Sisters--Fiction.
Triangles (Interpersonal relations)--Fiction.
Harvard subject headings:
Domestic fiction
Historical fiction
Oklahoma--Fiction
Sisters--Fiction
Triangles (Interpersonal relations)--Fiction
Princeton subject headings:
Fiction.
Oklahoma--Fiction.
Sisters--Fiction.
Triangles (Interpersonal relations)--Fiction.