I've never used blogger but here's an example of the URL structure. I just Googled and grabbed a link.
Code:
http://thecarblogger.blogspot.com/2007/12/official-2009-hyundai-genesis-kdm.html
so it looks to me like its blogname - blogspot - date - post title with dashes.
But it should tell you somewhere what the link is to view the post, I would think.