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| 01042nam##2200325za#4500 |
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| 001 | 9.613661 |
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| 003 | CaOODSP |
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| 005 | 20241008111406 |
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| 007 | ta |
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| 008 | 150406|1997||||xxc||||| f|0| 0 eng|d |
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| 020 | |a0-662-25529-1 |
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| 040 | |aCaOODSP|beng |
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| 043 | |an-cn--- |
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| 086 | 1 |aEn40-222/6-1997E |
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| 110 | 2 |aCanadian Wildlife Service. |
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| 245 | 10|aContaminants in herring gull eggs from the Great Lakes: 25 years of monitoring levels and effects / |cby D. P. Ryckman, D. V. Chip Weseloh and C. A. Bishop. |
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| 260 | |aDownsview - Ontario : |bEnvironment Canada. |c1997. |
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| 300 | |a12p. : |bcoloured illus., graphs ; |c28 cm. |
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| 490 | 1 |aGreat Lakes fact sheet |
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| 504 | |aBibliography. |
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| 563 | |aSoftcover |
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| 590 | |a00-48|b2000-12-01 |
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| 690 | 07|aContamination|2gcpds |
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| 690 | 07|aEcosystems|2gcpds |
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| 690 | 07|aPesticides|2gcpds |
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| 690 | 07|aBirds|2gcpds |
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| 720 | 1 |aWeseloh, D. V. Chip |
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| 720 | 1 |aRyckman, D. P. |
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| 720 | 1 |aBishop, C. A. |
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| 830 | #0|aGreat Lakes fact sheet.|w(CaOODSP)9.514572 |
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