Safety education in the elementary school
Subtitle: a technique for developing subject matter
By: by Ruth Streitz ...
Published: 1926
Place of publication: [New York]
Language: eng
Number of pages: 143
Subjects: Safety education; Accidents -- Prevention
Notes: Bibliography: p. 140-142.
Thesis (Ph. D.)--Columbia university, 1927.
Vita.
Published also as Publications of the National bureau of casualty and surety underwriters, Educational series, vol. I.