TY  - BOOK
AU  - Pius XI Pope
TI  - Encyclical letter on reconstruction the social order and perfecting it conformably to the precepts of the Gospel in commemoration of the fortieth anniversaty of the Encyclical Rerum novarum
U1  - WxM57, G1 
PY  - 1931///
KW  - POLITICAL SCIENCE
ER  -