ebrary, Inc, Enger, S. K., & Yager, R. E. (2006). Exemplary science in grades PreK-4: Standards-based success stories. NSTApress.
芝加哥风格引文ebrary, Inc, Sandra K. Enger, 与 Robert Eugene Yager. Exemplary Science in Grades PreK-4: Standards-based Success Stories. Arlington, Va.: NSTApress, 2006.
MLA引文ebrary, Inc, et al. Exemplary Science in Grades PreK-4: Standards-based Success Stories. NSTApress, 2006.
警告：这些引文格式不一定是100％准确.