Enquiry into the lignite industry in Europe.
Subtitle: Supplementary and amended information to the report submitted to the fourteenth session of the International labour conference.
Contributors: International Labour Conference (15th : 1931 : Geneva, Switzerland)
Publisher: International labour office
Published: 1931
Place of publication: Geneva
Language: eng
Number of pages: 12
Subjects: Hours of labour; Lignite
Notes: At head of title: International Labour Conference.  Fifteenth session.  Geneva, 1931.