-
21“…International Association of Labour History Institutions (IALHI)…”
Date 2007
-
22“…International Association of Labour History Institutions (IALHI)…”
Date 1973-1984
-
23Vanaf 2001 enkel nog raadpleegbaar via internet : http://www.ialhi.org/iabout.html“…International Association of Labour History Institutions (IALHI)…”
Date 1986-2000
-
24Vanaf 2001 enkel nog raadpleegbaar via internet : http://www.ialhi.org/iabout.html“…International Association of Labour History Institutions (IALHI)…”
Date 1987-2001
-
25
