On the religious situation in Mexico
Subtitle: apostolic letter of His Holiness, Pope Pius XI, issued March 28, 1937.
Publisher: National Catholic Welfare Conference
Published: 1937
Place of publication: Washington, D.C
Language: eng
Number of pages: 23
Subjects: Catholic Church -- Mexico.; Church and state -- Mexico.
Notes: Translation of the encyclical letter, "Firmissimam constantiam".