Minors in automobile and metal-manufacturing industries in Michigan ... 

 - Washington,  Govt. print. off.,  1923. 
 - vii, 131 p.  ill., plates. 
 - Bureau publication  no. 126 .
 - United States.  Children's Bureau.  Publication ;  no. 126. .
<br/><br/> At head of title: U. S. Department of labor.  James J. Davis, secretary.  Children's bureau.  Grace Abbott, chief.  Plates printed on both sides.  "...  The field work in connection with this study was supervised by Helen M. Dart, who, together with Ella Arvilla Merritt, has written the report.  The occupational descriptons were prepared by E. J. Allett." - Letter of transmittal. 
<br/><br/>"A brief bibliography": p. 123-131. 
<br/><br/><label>LCCN: </label>l  24000003  
<br/><br/><label>LC Class. No.: </label>HV741  / .A32 no. 126 
<br/><br/><label>National Library of Medicine Call No.: </label>W1  / UN6181 no.126 1923