※一部利用できない機能があります
1.
図書 |
Prepared by the Job analysis and information section, Division of standards and research, William H. Stead, director. April, 1938 ... United States Department of labor. Frances Perkins, secretary. United States Employment service, W. Frank Persons,
|
|||||
2.
図書 |
Prepared by the Job analysis and information section, Division of standards and research, William H. Stead, director. April, 1938 ... United States Department of labor. Frances Perkins, secretary. United States Employment service, W. Frank Persons,
|
|||||
3.
図書 |
Prepared by the Job analysis and information section, Division of standards and research, William H. Stead, director. April, 1938 ... United States Department of labor. Frances Perkins, secretary. United States Employment service, W. Frank Persons,
|
|||||
4.
図書 |
Prepared by the Job analysis and information section, Division of standards and research. June, 1939. United States Department of labor, Frances Perkins, secretary. United States Employment service, William H. Stead, chief executive officer.
|
|||||
5.
図書 |
prepared by The Job Analysis and Information Section, Division of Standards and Research William H. Stead, Director
|
|||||
6.
図書 |
United States Department of Labor, United States Employment Service ; prepared by the Job Analysis and Information Section, Division of Standards and Research
|