1974. Catálogo de EXFILNA 74, celebrada del 13 al 20 de Octubre de 1974. Organiza Sociedad Filatélica Sevillana. Sevilla, 1974.
Automatically generated translation
1974. Catalog of EXFILNA 74, held from October 13 to 20, 1974. Organized by the Seville Philatelic Society. Sevilla, 1974.