Comparative effectiveness of some visual aids in seventh grade instruction
By: by Joseph J. Weber.
Publisher: Educational Screen
Published: 1922
Place of publication: Chicago, Ill
Language: eng
Number of pages: 131
Subjects: Visual education; Educational tests and measurements
Notes: Thesis (PH. D.)--Columbia University, 1921.
Thesis note in different form mounted over thesis note on t.-p. and 1 leaf containing biography inserted at end.