We suggest that you check out Missouri State Documents Bibliography. This bibliography was written for the American Association of Law Libraries’ Government Document'sSpecial Interest Section by Judy Stark in 2010 while she was working as a government documents librarian and lecturer in law at Washington University School of Law. The bibliography updated an earlier bibliography that was compiled by Mary Ann Nelson in 1991.
This bibliography begins with general information about the state of Missouri, its State Documents program, constitutional conventions, branches of the state government, directories and periodicals, bar associations, law schools, law libraries, and Missouri Depository Libraries.
Here are some urls that you may be interested bookmarking.