The UCLA American Indian Studies Center just published a textbook, Structuring Sovereignty: Constitutions of Native Nations, Classified Stacks,
From the Introduction: "Drafting and adopting a constitution is more than a legal process. It is a journey of self-discovery and reflection. A successful constitution is one that reflects both a community's vision of itself and the rules by which a community agrees to govern itself over time." The book's goal "is to guide the reader to an understanding of the purpose of a constitution and the particular components necessary to achieve that purpose."
An electronic appendix provides the complete text of excerpted and other constitutions. The appendix is linked in our catalog record or can be directly accessed here.