The New Schaff-Herzog Encyclopedia of Religious Knowledge. Vol. VIII.. Morality-Petersen. /
Edited by Samuel Macauley Jackson, D.D., LL.D; With the Assistance of Charles Colebrook Sherman and George William Gilmore, M. A 
. - Grand  Rapids; Michigan : Baker Book House,  1969 
. - XVII, 500 p.  25 cm.