Ethel L Best
5 œuvres dans le catalogue
The Economic problems of the women of the Virgin Islands of the United States
United States government printing office
1936
[Texte imprimé]
A Study of a change from one shift of 9 hours to two shifts of 6 hours each
United States government printing office
1934
[Texte imprimé]
A study of a change from 8 to 6 hours of work
United states government printing office
1933
[Texte imprimé]
The Change from manual to dial operation in the telephone industry
United States government printing office
1933
[Texte imprimé]
The Employment of women in vitreous enameling
United States government printing office
1932
[Texte imprimé]