APA (7th ed.) Citation

Iglesia Católica & Pío X , P.. (1963). Acerbo nimis: : Encyclical of St. Pius X on the Teaching of Christian Doctrine. : The Confraternity of Christian Doctrine.

Chicago Style (17th ed.) Citation

Iglesia Católica and Papa Pío X. Acerbo Nimis: : Encyclical of St. Pius X on the Teaching of Christian Doctrine. [S.l.]: : The Confraternity of Christian Doctrine, 1963.

MLA (9th ed.) Citation

Iglesia Católica and Papa Pío X. Acerbo Nimis: : Encyclical of St. Pius X on the Teaching of Christian Doctrine. : The Confraternity of Christian Doctrine, 1963.