ebrary, Inc. (1998). Technical and ethical guidelines for workers' health surveillance. International Labour Office.
Chicago-referens (17:e uppl.)ebrary, Inc. Technical and Ethical Guidelines for Workers' Health Surveillance. Geneva: International Labour Office, 1998.
MLA-referens (9:e uppl.)ebrary, Inc. Technical and Ethical Guidelines for Workers' Health Surveillance. International Labour Office, 1998.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.