In This Review

A Guide to the Encyclicals of the Roman Pontiffs from Leo XIII to the Present Day (1878-1937)
A Guide to the Encyclicals of the Roman Pontiffs from Leo XIII to the Present Day (1878-1937)
By Sister M. Claudia Carlen
H. W. Wilson, 1939, 247 pp.

A bibliographical reference book, officially approved by the Church.