American Library Association (1876-)(1)
Bet ha-sefarim ha-leʾumi ṿe-ha-universiṭẚi ha-ʿivri (-2010)(1)
Centro Didattico Nazionale di Studi e Documentazione (Florenz) (1)
Deutschland (Bundesrepublik). Bundesminister des Innern (1949-1990)(1)
Instituto Nacional del Libro Español (Madrid). Comisión Nacional de Lecturas Juveniles (-1982)(1)
International Board on Books for Young People(1)
International Board on Books for Young People. Yugoslavian Section(1)
Library Association. Youth Libraries Group(1)
Sveriges Allmänna Biblioteksförening(1)
USA. Department of Health, Education, and Welfare(1)
Verlag für Jugend und Volk (1945-1992)(1)