Hewitt, P. G. (1977). Conceptual physics: A new introduction to your environment (3rd ed.). Little, Brown.
Chicago-viite (17. p.)Hewitt, Paul G. Conceptual Physics: A New Introduction to Your Environment. 3rd ed. Boston: Little, Brown, 1977.
MLA-viite (9. p.)Hewitt, Paul G. Conceptual Physics: A New Introduction to Your Environment. 3rd ed. Little, Brown, 1977.
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