SIOUX FALLS, S.D. (AP) — South Dakota's state-owned publishing house is printing more copies of the memoir by prairie author Laura Ingalls Wilder.

"Pioneer Girl: The Annotated Autobiography," edited by Pamela Smith Hill, was released in November. It's proved to be a blockbuster for the South Dakota Historical Society Press. It's in its fourth week on the New York Times Best Sellers list and as of early May will have 125,000 copies in print.

The Argus Leader reports that books from fourth and fifth printing runs will be shipped soon. A sixth print run likely will come later this year in preparation for Christmas.

Wilder penned the popular children's series of "Little House on the Prairie" books, but her autobiography was written for an adult audience and gives a grittier view of frontier living.

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