Cita APA (7a ed.)

AGUSTIN, S., & STROTHMANN, F. W. (1966). On two Cities: : Selections from the City of God (6th. printing.). Frederick Ungar.

Cita Chicago Style (17a ed.)

AGUSTIN, San, y F. W. STROTHMANN. On Two Cities: : Selections from the City of God. 6th. printing. New York: Frederick Ungar, 1966.

Cita MLA (9a ed.)

AGUSTIN, San, y F. W. STROTHMANN. On Two Cities: : Selections from the City of God. 6th. printing. Frederick Ungar, 1966.