Não informado. (1971). Closed Loop: The magazine of mechanical testing. MTS Systems.
Chicago-viite (17. p.)Não informado. Closed Loop: The Magazine of Mechanical Testing. Minneapolis, Minn: MTS Systems, 1971.
MLA-viite (8. p.)Não informado. Closed Loop: The Magazine of Mechanical Testing. MTS Systems, 1971.
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