Orientation in school health

Bibliographische Detailangaben
1. Verfasser:	Langton, Clair Van Norman 1895-
Format:	Buch
Sprache:	English
Veröffentlicht:	New York, London Harper & brothers [c1941].
Schlagworte:	School hygiene. Schools > Sanitary affairs. > U.S. Hygiene > Study and teaching.