Work of school children during out-of-school hours /
by C.D. Jarvis.
- Washington : G.P.O., 1917.
- 28 p. ; 23 cm.
- Bulletin / Department of the Interior, Bureau of Education ; 1917, no. 20 .
- Bulletin (United States. Bureau of Education) ; 1917, no. 20 .
L111.A6 with: Studies in higher education in England and Scotland / George Edwin MacLean. Washington : Govt. Print. Off., 1917. Bound together subsequent to publication.