Spinelli, E., & DePalma, M. N. (2011). Now it is summer. Eerdmans Books for Young Readers.
芝加哥风格引文Spinelli, Eileen, 与 Mary Newell DePalma. Now It Is Summer. Grand Rapids, MI: Eerdmans Books for Young Readers, 2011.
MLA引文Spinelli, Eileen, 与 Mary Newell DePalma. Now It Is Summer. Eerdmans Books for Young Readers, 2011.
警告：这些引文格式不一定是100％准确.