Hewitt, P. G., Suchocki, J., & Hewitt, L. A. (2004). Conceptual physical science (3rd ed.). Pearson/Addison Wesley.
Lua i Stíl Chicago (17ú heag.)Hewitt, Paul G., John Suchocki, agus Leslie A. Hewitt. Conceptual Physical Science. 3rd ed. San Francisco, Calif: Pearson/Addison Wesley, 2004.
Lua MLA (9ú heag.)Hewitt, Paul G., et al. Conceptual Physical Science. 3rd ed. Pearson/Addison Wesley, 2004.
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