APA

Pius X, . (1971). Encyclical letter ("Pascendi Gredis") of our most Holy Lord Pius X. By divine providence pope on the Doctrines of the modernists. London: Burns and Oates, Ltd.

Chicago

Pius X, . 1971. Encyclical letter ("Pascendi Gredis") of our most Holy Lord Pius X. By divine providence pope on the Doctrines of the modernists. London: Burns and Oates, Ltd.

Harvard

Pius X, . (1971). Encyclical letter ("Pascendi Gredis") of our most Holy Lord Pius X. By divine providence pope on the Doctrines of the modernists. London: Burns and Oates, Ltd.

MLA

Pius X, . Encyclical letter ("Pascendi Gredis") of our most Holy Lord Pius X. By divine providence pope on the Doctrines of the modernists. London: Burns and Oates, Ltd. 1971.