Swartz, C. (2003). Back-of-the-envelope physics. Baltimore: The Johns Hopkins University Press.
Παραπομπή Chicago StyleSwartz, Clifford. Back-of-the-envelope Physics. Baltimore: The Johns Hopkins University Press, 2003.
Παραπομπή MLASwartz, Clifford. Back-of-the-envelope Physics. Baltimore: The Johns Hopkins University Press, 2003.
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