Constitvtiones Societatis Iesu : cum erum declarationibus. Romae: In Collegio Romano eiusdem Societatis. Svperiorvm permissv, MDCXV.
Here is the title page from the Constitutiones, the rules for the organization and activity of the Jesuit order. These were also created by Ignatius over an extended period from about 1540 to 1555. The work was given its official Latin translation by Juan Polanco, Ignatius's personal secretary. The early copy of the Constitutions in the Grasselli Library was published in Rome in 1615.