Broek, D. (1982). Elementary Engineering Fracture Mechanics David Broek. Martinus Nijhoff.
Lua i Stíl Chicago (17ú heag.)Broek, David. Elementary Engineering Fracture Mechanics David Broek. Martinus Nijhoff, 1982.
Lua MLA (8ú heag.)Broek, David. Elementary Engineering Fracture Mechanics David Broek. Martinus Nijhoff, 1982.
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