A companion to rhetoric and rhetorical criticism / edited by Walter Jost and Wendy Olmsted. - Olmsted, Wendy. (OLS)http://pul/name/53624; Jost, Walter. (OLS)http://pul/name/53623 (Blackwell, 2004)
Bibliografia in nota.

L'ascesi mistica / Pietro Ubaldi. - Ubaldi, Pietro. (OLS)http://pul/name/54352 (Hoepli, 1939)