Hopkinson, B. (1910). Vibrations of systems having one degree of freedom. University Press.
Čikaški stil citiranja (17. izdanje)Hopkinson, B. Vibrations of Systems Having One Degree of Freedom. Cambridge [Eng.]: University Press, 1910.
MLA način citiranja (8. izdanje)Hopkinson, B. Vibrations of Systems Having One Degree of Freedom. University Press, 1910.
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