TY  - BOOK
AU  - Stevenson,P.R.
TI  - Smaller classes or larger: a study of the relation of class-size to the efficiency of teaching
AV  - LB1026 .S7 1923a
PY  - 1923///
CY  - Bloomington, Ill.
PB  - Public School Pub. Co.
KW  - Teaching
KW  - Class size
N1  - Issued also as thesis, Columbia University
ER  -