APA-referens (7:e uppl.)

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.