-
561Congres gehouden te Brussel op 27 en 28 september 1958Subjects:
Date 1958 -
562
Date 1966
-
563
-
564
Date 1961
-
565
-
566
Date 1924
-
567Subjects: “…ABVV-congressen…”
-
568Subjects: “…congressen…”
-
569
-
570
-
571
-
572Subjects: “…congressen…”
-
573
-
574
Date 1921
-
575
-
576Subjects: “…congressen…”
-
577Subjects: “…congressen…”
-
578Bibliotheek François VercammenSubjects: “…KPB-congressen…”
Date 1948
-
579Documents et textes syndicaux internationauxSubjects: “…congressen…”
Date 1962
-
580Subjects: “…congressen…”