Não informado. (1971). Closed Loop: The magazine of mechanical testing. MTS Systems.
Chicago-referens (17:e uppl.)Não informado. Closed Loop: The Magazine of Mechanical Testing. Minneapolis, Minn: MTS Systems, 1971.
MLA-referens (8:e uppl.)Não informado. Closed Loop: The Magazine of Mechanical Testing. MTS Systems, 1971.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.