Twee levens : Mijndert van der Horst 1910-1976 Communist en verzetstrijder ; Johanna Francisca Siffels 1920-1944 V-vrouw en moeder / A.J. van der Horst Communist threat to the United States through the Caribbean : hearings before the Subcommittee to Investigate the Administration of the Internal Security Act and Other … World strength of the communist party organizations / US Department of State. Bureau of Intelligence and Research Exécutif élargi de l'Internationale communiste : compte rendu analytique International communist front organizations / Robert Orth
