TY  - BOOK
AU  - Pius XI
TI  - After forty years
PY  - 1931///
CY  - New York
PB  - Barry Vail Corporation
KW  - Catholic Church
KW  - Leo XIII
KW  - Rerum Novarum
KW  - Pius XI
KW  - Quadragesimo Anno
KW  - Labor & laboring classes
KW  - Sociology, Christian
KW  - Catholic authors
ER  -