Published 1939
by Teachers college, Columbia university in New York city .
Written in English
Edition Notes
Statement | by Elizabeth Beall. |
Series | Teachers college, Columbia university. Contributions to education,, no. 774 |
Classifications | |
---|---|
LC Classifications | GV439 .B32 1939a |
The Physical Object | |
Pagination | 68 p. incl. tables. |
Number of Pages | 68 |
ID Numbers | |
Open Library | OL6391176M |
LC Control Number | 39022256 |
OCLC/WorldCa | 3014577 |