Smaller classes or larger
Subtitle: a study of the relation of class-size to the efficiency of teaching
By: [by] P.R. Stevenson ...
Published: 1923
Language: eng
Number of pages: 127
Subjects: Teaching; School management and organization
Notes: Vita on label mounted on p. 127.

Published also as Journal of educational research monographs ... no. 4.

Thesis (Ph. D.)--Columbia University, 1925.

Bibliography: p. 126-127.