How to conduct consumer and opinion research : the sampling survey in operation /
Wedi'i Gadw mewn:
| Prif Awdur: | |
|---|---|
| Fformat: | Llyfr |
| Iaith: | English |
| Cyhoeddwyd: |
New York ; London :
Harper & brothers,
[1946].
|
| Pynciau: |
CARM 1 Store
| Rhif Galw: |
A2:AK33F0 C03675 |
|---|---|
| Copi 1 | Ar gael Gwneud Cais |