Guide des catalogues collectifs et du prêt international

by Brummel, Leendert, 1897-
La Haye, M. Nijhoff, 1961

Union catalogues : their problems and organization.

by Brummel, Leendert, 1897-
[Paris] : UNESCO, 1956

Twee ballingen's lands tijdens onze opstand tegen Spanje : Hugo Blotius (1534-1608), Emanuel van Meteren (1535-1612) /

by Brummel, Leendert, 1897-
's-Gravenhage : M. Nijhoff, 1972

International loan services and union catalogues;

Frankfurt am Main, V. Klostermann 1974