Grant, E. (2010). The nature of natural philosophy in the late Middle Ages. Catholic University of America Press.
Lua i Stíl Chicago (17ú heag.)Grant, Edward. The Nature of Natural Philosophy in the Late Middle Ages. Washington, D.C.: Catholic University of America Press, 2010.
Lua MLA (9ú heag.)Grant, Edward. The Nature of Natural Philosophy in the Late Middle Ages. Catholic University of America Press, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.