Contemplating Aquinas : on the varieties of interpretation / edited by Fergus Kerr OP. - Kerr, Fergus. (OLS)http://pul/name/31217 (SCM press, 2003)
Bibliografia in nota.

A new introduction to modal logic / G.E. Hughes and M.J. Cresswell. - Hughes, G.E. (OLS)http://pul/name/94565; Cresswell, M.J. (OLS)http://pul/name/94566 (Routledge, 2005)
Include riferimenti bibliografici ed indice.