C 500.240/~. 

Catalogue periodicals annuals. -Catalogue 
of periodicals, annuals and special series 
currently received at the United Nations 
Library. Catalogue des revues, annuaires 
et series s~eciales regulierement recus a 
la Bibliotheque des Nations Unies. Catalogo 
de revistas, anuarios y series especiales 
recibidos corrientemente en la Biblioteca 
de las Naciones Unidas. Katalog periodiki, 


s. 2. Zettel