Schaefer, L. M., & Hartung, S. K. (2012). Mittens at school. Harper.
芝加哥风格引文Schaefer, Lola M., 与 Susan Kathleen Hartung. Mittens at School. New York: Harper, 2012.
MLA引文Schaefer, Lola M., 与 Susan Kathleen Hartung. Mittens at School. Harper, 2012.
警告：这些引文格式不一定是100％准确.