APA (7th ed.) Citation

Leo XIII. (1998). Encyclical letter: Libertas Praestantissimum of the Supreme Pontiff Pope Leo XIII on human liberty, June 20, 1888 (Angelus Press Edition, February 1998.). Angelus Press.

Chicago Style (17th ed.) Citation

Leo XIII. Encyclical Letter: Libertas Praestantissimum of the Supreme Pontiff Pope Leo XIII on Human Liberty, June 20, 1888. Angelus Press Edition, February 1998. Kansas City: Angelus Press, 1998.

MLA (9th ed.) Citation

Leo XIII. Encyclical Letter: Libertas Praestantissimum of the Supreme Pontiff Pope Leo XIII on Human Liberty, June 20, 1888. Angelus Press Edition, February 1998. Angelus Press, 1998.

Warning: These citations may not always be 100% accurate.