000 00867nam##2200265za#4500
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008150406|1992||||xxc|||||     f|0| 0 eng|d
020 |a0-662-19900-6
040 |aCaOODSP|beng
043 |an-cn---
0861 |aEn1-12/92-1E
1101 |aCanada. |bEnvironment Canada. |bState of the Environment Reporting.
24510|aGround-level ozone in Canada / |cby Jessica Thomson.
260 |aOttawa - Ontario : |bEnvironment Canada. |c1992.
300 |a12p. : |bfigs., graphs, references ; |c28 cm.
4901 |aA state of the environment fact sheet|v92-1
563 |aSoftcover
590 |a92-45|b1992-11-06
69007|aAir pollution|2gcpds
69007|aPollution control|2gcpds
7201 |aThomson, Jessica
830#0|aA state of the environment fact sheet ;|v92-1|w(CaOODSP)9.514531