APA-referens (7:e uppl.)

Não informado. (1972). Civil engineering technician. Institution of Civil Engineers.

Chicago-referens (17:e uppl.)

Não informado. Civil Engineering Technician. London: Institution of Civil Engineers, 1972.

MLA-referens (8:e uppl.)

Não informado. Civil Engineering Technician. Institution of Civil Engineers, 1972.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.