Não informado. (1960). Paper Technology. British Paper and Board Makers Association, Technical Section.
Chicago-referens (17:e uppl.)Não informado. Paper Technology. London: British Paper and Board Makers Association, Technical Section, 1960.
MLA-referens (8:e uppl.)Não informado. Paper Technology. British Paper and Board Makers Association, Technical Section, 1960.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.