| 000 | 00000nam 2200000zi 4500 |
| 001 | 9.950550 |
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| 003 | CaOODSP |
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| 005 | 20250508072605 |
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| 006 | m o d f |
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| 007 | cr mn||||||||| |
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| 008 | 250429t19891989oncab o f000 0 eng d |
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| 020 | |a0662172922 |q(print) |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |ar------|at------ |
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| 086 | 1 |aEn57-29/2-1989E-PDF|zEn57-29/2-1989E |
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| 245 | 00|aDepletion of the Arctic ozone layer. |
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| 264 | 1|aDownsview, Ontario : |bEnvironment Canada, Atmospheric Environment Service = Environnement Canada, Service l'environnement atmosphérique, |c1989. |
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| 264 | 4|c©1989 |
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| 300 | |a1 online resource (2 unnumbered pages) : |billustration, maps. |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 490 | 1 |aChanging atmosphere, fact sheet, |y0847-3099 |
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| 500 | |aIssued also in French under title: Épuisement de la couche d'ozone de l'Arctique. |
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| 500 | |a"December/89"--Page [2]. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 650 | 0|aOzone layer depletion|zPolar regions. |
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| 710 | 1 |aCanada. |bAtmospheric Environment Service, |eissuing body. |
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| 775 | 08|tÉpuisement de la couche d'ozone de l'Arctique.|w(CaOODSP)9.950551 |
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| 830 | #0|aChanging atmosphere, fact sheet (Canada. Atmospheric Environment Service) |
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| 856 | 40|qPDF|s1.55 MB|uhttps://publications.gc.ca/collections/collection_2025/eccc/en57/En57-29-2-1989-eng.pdf |
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