Once in a blue moon /
Mary Wentworth King.
APA Citation
King, M. Wentworth. (1939). Once in a blue moon. New York: Grosset & Dunlap.
MLA Citation
King, Mary Wentworth. Once In a Blue Moon. New York: Grosset & Dunlap, 1939.
Warning: These citations may not always be complete (especially for serials).