400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=common+prayer.+[With]+Psalms,+metre,+selected+Psalms+David.+[Followed+by]+Hymns+Protestant+episcopal+Church+United+States+America because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.