Report on the clay products industry (except pottery and refractories) for Industry committee no. 24. April 1941 ...
Published: 1941
Place of publication: Washington]
Language: eng
Number of pages: 69
Subjects: Mimeographed; Clay industries; Wages
Notes: Cover title.

At head of title: United States Department of labor. Wage and hour division. Research and statistics branch.

Bibliographical foot-notes.