APA Style

Wilder, L, I., Graef, R. (1960). Summertime in the Big House (My first little house books) . New York: HarperCollins.

MLA Style

Wilder, Laura, Ingalls., Graef, Renee. "Summertime in the Big House (My first little house books)". New York: HarperCollins, 1960. Printed Book.