Columbia subject headings:
Harvard subject headings:
Big business--Spain--Congresses.
Industries--Spain--Congresses.
Spain--Economic conditions--1918-1975--Congresses.
Princeton subject headings:
Big business--Spain--Congresses.
Cámara Oficial de Comercio, Industria y Navegación de Bilbao.
Industries--Spain--Congresses.
Instituto Internacional de Dirección de Empresas.
Spain--Economic conditions--1918-1975--Congresses.