While its not strictly a circulation managment system, Open Journal Systems (http://www.pkp.ubc.ca/ojs/) is about the most robust, open source journal managment system around -- including some functionality for subscription based journals.
Version 2 was released within the past few weeks, and may include some of the features you're looking for -- and if not, this is probably the most mature system of it's type if you're looking to add/contribute.
I'm guessing that printing mailing labels from a web interface will be a difficult feature to find in an existing project.
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While its not strictly a circulation managment system, Open Journal Systems (http://www.pkp.ubc.ca/ojs/) is about the most robust, open source journal managment system around -- including some functionality for subscription based journals.
Version 2 was released within the past few weeks, and may include some of the features you're looking for -- and if not, this is probably the most mature system of it's type if you're looking to add/contribute.
I'm guessing that printing mailing labels from a web interface will be a difficult feature to find in an existing project.