http://www.springerlink.com.ezproxy2.library.arizona.edu/content/w43p168015123202/fulltext.html* Seymour, Deni J., 2007b "Delicate Diplomacy on a Restless Frontier: Seventeenth-Century Sobaipuri Social And Economic Relations in Northwestern New Spain, Part I".
11(3):269-296. http://www.springerlink.com.ezproxy2.library.arizona.edu/content/w43p168015123202/fulltext.html* Seymour, Deni J., 2007b Delicate Diplomacy on a Restless Frontier: Seventeenth-Century Sobaipuri Social And Economic Relations in Northwestern New Spain, Part I.