APA-referens (7:e uppl.)

Não informado. (1979). Energy technology. National Swedish Board for Technical Development.

Chicago-referens (17:e uppl.)

Não informado. Energy Technology. Stockholm: National Swedish Board for Technical Development, 1979.

MLA-referens (8:e uppl.)

Não informado. Energy Technology. National Swedish Board for Technical Development, 1979.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.