Works about St. Thomas Aquinas

St. Thomas Aquinas -- from The New Schaff-Herzog Encyclopedia of Religious Knowledge
Catholic Encyclopedia, Volume 14: Simony-Tournon -- from Herbermann, Charles George (1840-1916)
Thomas Aquinas, Saint (1225?-1274) -- from Wikipedia Article
Eclectic Ethereal Encyclopedia -- from Christian Classics Ethereal Library (1993-)