Say it with figures /
| Main Author: | |
|---|---|
| Format: | Book |
| Language: | English |
| Published: |
New York :
Harper,
[1947]
|
| Edition: | [1st. ed.]. |
| Series: | Publications of the Bureau of Applied Social Research, Columbia University.
|
| Subjects: |
| Physical Description: | xvii, 250 pages : diagrams ; 22 cm. |
|---|