TY  - GEN
AU  - Masse, Benjamin Louis, 1905- ed.
TI  - Includes bibliographical references
AV  - HN 37 .C3 M469 
KW  - John XXIII, Pope, 1958-1963. Mater et magistra (15 May 1961)
N1  - Church and social problems--Catholic Church
ER  -