STORM2K

I'm looking for an electronic version (PDF?) of the WMO International Cloud Atlas, Volume I: Manual on the Observation of Clouds and Other Meteors (WMO No. 407). If you can point me in the right direction, I'll be VERY happy. Thanks.

It's out of print but this may help:

http://www.weatheranswer.com/public/Clouds_WMO.pdf