Lua APA (7ú heag.)
Royce, C. A., Ansberry, K. R., & Morgan, E. R. (2012). Teaching science through trade books. National Science Teachers Association.
Lua i Stíl Chicago (17ú heag.)
Royce, Christine Anne, Karen Rohrich Ansberry, agus Emily R. Morgan. Teaching Science Through Trade Books. Arlington, Va.: National Science Teachers Association, 2012.
Lua MLA (9ú heag.)
Royce, Christine Anne, et al. Teaching Science Through Trade Books. National Science Teachers Association, 2012.
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