TY  - BOOK
AU  - Berkowitz,J.H.
TI  - The eyesight of school children: defective vision as related to school environment, and methods of prevention and correction 
AV  - L111 .A6 1919, no. 65
PY  - 1920///
CY  - Washington
PB  - Govt. print. off.
KW  - Eye
KW  - Care and hygiene
KW  - Diseases
N1  - At head of title: Department of the interior; Copy 1 of L111.A6 with: Natural science teaching in Great Britain / Committee on Natural Science in the Educational System of Great Britain. Washington : Govt. Print. Off., 1919. Bound together subsequent to publication; Copy 2 of L111.A6 with: Public discussion and information service of university extension / Walton S. Bittner. Washington : Govt. Print. Off., 1920. Bound together subsequent to publication
ER  -