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521“… Documents on the struggle against chemical weapons, (1986) 2…”
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522“… Documents on the struggle against chemical weapons, (1987) 3…”
-
523“… Documents on the struggle against chemical weapons, (1986) 1…”
-
524“… documents pour l'histoire, 1…”
-
525“… Documents de Travail, 63…”
Date 1994
-
526
-
527“… Note de documentation, 7…”
-
528
-
529Collectie Vrijzinnige Werkmansbibliotheek“… Documents of the First International…”
Date [1964]
-
530Bibliotheek E. Anseele“… Document Comité Interuniversitaire Sino-Belge, (1931)4…”
Date 1931
-
531
-
532“… Etudes et documents…”
-
533“… Etudes et documents…”
Date 1925
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534
-
535“… Etudes et documents…”
Date 1932
-
536
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537
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538
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539
-
540“… Etudes et documents…”
Date 1929