Research in education
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
Englewood, Cliffs
N.J. Prentice-Hall
[c1970].
|
| Edizioa: | 2nd ed. |
| Saila: | Prentice-Hall series in educational measurement, research, and statistics
|
| Gaiak: |