Schultz, A. "To Lose the Unspeakable": Folklore and Landscape in O. E. Rolvaag's "Giants in the Earth": April Schultz. Mapping American culture.(1992).
Chicago-Zitierstil (17. Ausg.)Schultz, April. ""To Lose the Unspeakable": Folklore and Landscape in O. E. Rolvaag's "Giants in the Earth": April Schultz." Mapping American Culture.(1992) .
MLA-Zitierstil (8. Ausg.)Schultz, April. ""To Lose the Unspeakable": Folklore and Landscape in O. E. Rolvaag's "Giants in the Earth": April Schultz." Mapping American Culture.(1992), .
警告：这些引文格式不一定是100％准确.