Child labor and the work of mothers in the beet fields of Colorado and Michigan 
Contributors: Matthews, Ellen Nathalie, b. 1884.; Light, Gertrude Underhill, b. 1871.
Series: Bureau publication; no. 115
Publisher: Govt. print. off.
Published: 1923
Place of publication: Washington
Language: eng
Number of pages: 122
Notes: At head of title: U. S. Department of labor.  James J. Davis, secretary.  Children's bureau.  Grace Abbott, chief.
"The investigation was planned and carried on under the direction of Ellen Nathalie Matthews ... Dr. Gertrude A. [sic] Light made physical examinations of children in the Colorado beet-field region and analyzed the findings with reference to health." - Letter of transmittal, p. v.