00587cam a22002051 4500 e 20000427 DLC 20260227111211.0 780223s1919 enk 000 0 eng c e 20000427 (OCoLC)3662962 Library, U.S. Bur. of Education NNR DLC HD6250.G7 G5 Gibb, Spencer James. Boy-work, exploitation or training? By The Rev. Spencer J. Gibb. London, T. F. Unwin [1919] 223 p. 20 cm. Boys. Child labor Great Britain. 20378 20378