ebrary, Inc. (1998). Technical and ethical guidelines for workers' health surveillance. International Labour Office.
Lua i Stíl Chicago (17ú heag.)ebrary, Inc. Technical and Ethical Guidelines for Workers' Health Surveillance. Geneva: International Labour Office, 1998.
Lua MLA (9ú heag.)ebrary, Inc. Technical and Ethical Guidelines for Workers' Health Surveillance. International Labour Office, 1998.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.