Dyfyniad APA

ebrary, Inc, Enger, S. K., & Yager, R. E. (2006). Exemplary science in grades PreK-4: Standards-based success stories. NSTApress.

Dyfyniad Arddull Chicago

ebrary, Inc, Sandra K. Enger, and Robert Eugene Yager. Exemplary Science in Grades PreK-4: Standards-based Success Stories. Arlington, Va.: NSTApress, 2006.

Dyfyniad MLA

ebrary, Inc, et al. Exemplary Science in Grades PreK-4: Standards-based Success Stories. NSTApress, 2006.

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