Outward signs the powerlessness of external things in Augustine's thought.

MLA

Cary, Phillip. Outward Signs: the Powerlessness of External Things In Augustine's Thought. Oxford: Oxford university press, 2008.

APA

Cary, P. (2008). Outward signs: the powerlessness of external things in Augustine's thought. Oxford: Oxford university press.

Chicago

Cary, Phillip Outward Signs: The Powerlessness of External Things In Augustine's Thought. Oxford: Oxford university press, 2008.