000 00834nas  2200265zi 4500
0019.868593
003CaOODSP
00520221107162629
006m     o  d f      
007cr |||||||||||
008190220d19739999onc x m o    f0###|0eng|d
040 |aCaOODSP|beng|erda|cCaOODSP
043 |an-cn---
0861 |aEn42-15E-PDF
24500|aReport APCD.
24633|aAPCD
264 1|a[Ottawa] : |bAir Pollution Control Directorate, Environmental Protection Service
310 |aIrregular
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
588 |aDescription based on: 73-4 (Oct. 1973).
69207|2gccst|aAir pollution
7101 |aCanada. |bEnvironment Canada. |bEnvironmental Protection Service.
7101 |aCanada. |bAir Pollution Control Directorate.