Não informado. (1940). American Industrial Hygiene Association Quarterly. American Industrial Hygiene Association.
Chicago-referens (17:e uppl.)Não informado. American Industrial Hygiene Association Quarterly. Chicago, Ill: American Industrial Hygiene Association, 1940.
MLA-referens (8:e uppl.)Não informado. American Industrial Hygiene Association Quarterly. American Industrial Hygiene Association, 1940.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.