Conferencia international del trabajo.
Contributors: International Labour Conference (1st : 1919 : Washington, D.C.)
Publisher: Sobrinos de la suc. de M. Minuesca de los Ríos
Published: 1919
Place of publication: Madrid
Language: spa
Number of pages: 29
Subjects: Working class -- Congresses.; Labor -- Congresses.
Genres: Congresses.