APA

Catholic Church, . (1980). Humani generis: concerning some false opinions which threaten to undermine the foundations of Catholic doctrine ; encyclical letter. Boston, Mass: St. Paul Editions.

Chicago

Catholic Church, . 1980. Humani generis: concerning some false opinions which threaten to undermine the foundations of Catholic doctrine ; encyclical letter. Boston, Mass: St. Paul Editions.

Harvard

Catholic Church, . (1980). Humani generis: concerning some false opinions which threaten to undermine the foundations of Catholic doctrine ; encyclical letter. Boston, Mass: St. Paul Editions.

MLA

Catholic Church, . Humani generis: concerning some false opinions which threaten to undermine the foundations of Catholic doctrine ; encyclical letter. Boston, Mass: St. Paul Editions. 1980.