RT Book T1 Social studies in the elementary school T2 Yearbook of the National Society for the Study of Education JF The yearbook of the National Society for the Study of Education A2 Henry, Nelson B. 1883-1969 LA English PP Chicago, Ill. PB University of Chicago Press YR 1957 ED 1. printing UL https://ixtheo.de/Record/223664049 CN LB5 K1 Social Sciences : Study and teaching (Elementary)