1. Principal rules of the Italian grammer : with a dictionarie for the better understandyng of Boccace Creator: Thomas, William, -1554 Published / Created: An. 1550. Call Number: 1991 321 Image Count: 2 Found in: Beinecke Rare Book and Manuscript Library > Principal rules of the Italian grammer : with a dictionarie for the better understandyng of Boccace, Petrarcha, and Dante / gathered into this tongue by William Thomas.