Olsen, G. A. (1982). Elements of mechanics of materials (4th ed.). Prentice-Hall.
Lua i Stíl Chicago (17ú heag.)Olsen, Gerner A. Elements of Mechanics of Materials. 4th ed. Englewood Cliffs, N.J: Prentice-Hall, 1982.
Lua MLA (9ú heag.)Olsen, Gerner A. Elements of Mechanics of Materials. 4th ed. Prentice-Hall, 1982.
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