The New York Times guide to reference materials original title: Who-what-when-where-how-why-made easy.
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
New York
Warner Books
c1979
|
| Gaiak: |
| Egile nagusia: | |
|---|---|
| Formatua: | Liburua |
| Argitaratua: |
New York
Warner Books
c1979
|
| Gaiak: |