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Environmental problems and solutions : greenhouse effect, acid rain, pollution /
| Beste egile batzuk: | |
|---|---|
| Formatua: | Printed Book |
| Argitaratua: |
New York :
Hemisphere Pub. Corp.,
c1990.
|
| Gaiak: | |
| Sarrera elektronikoa: | http://www.loc.gov/catdir/enhancements/fy0714/89019786-d.html |