Occupational employment
Subtitle: hydraulic cement industry, April 1971
Series: Report -- 430-18; Report (United States. Bureau of Labor Statistics) -- 430-18
Publisher: U.S. Dept. of Labor/Bureau of Labor Statistics
Published: 1974
Place of publication: Washington, D.C
Language: eng
Subjects: Cement industry workers; Statistics
Other titles: Hydraulic cement industry, April 1971
Notes: Caption title.

"June 1974."