APA način citiranja (7. izdanje)

Catholic Church. Pope (1878-1903 : Leo XIII) & Leo XIII, P. (1998). Encyclical letter Libertas praestantissimum of the supreme Pontiff Leo XIII: On human liberty, June 20, 1888. Angelus Press.

Čikaški stil citiranja (17. izdanje)

Catholic Church. Pope (1878-1903 : Leo XIII) i Pope Leo XIII. Encyclical Letter Libertas Praestantissimum of the Supreme Pontiff Leo XIII: On Human Liberty, June 20, 1888. Kansas City, Mo.: Angelus Press, 1998.

MLA način citiranja (8. izdanje)

Catholic Church. Pope (1878-1903 : Leo XIII) i Pope Leo XIII. Encyclical Letter Libertas Praestantissimum of the Supreme Pontiff Leo XIII: On Human Liberty, June 20, 1888. Angelus Press, 1998.