Czarnecka, A. Sherif Girgis, Ryan T. Anderson, Robert P. George, What is Marriage. Man and Woman: A Defense, New York, London 2012, ss. 133. Patrick Lee, Robert P. George, Conjugal Union What Marriage Is and Why It Matters, Cambridge 2014, ss. 143. Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie.
Chicago Style (17th ed.) CitationCzarnecka, Agata. Sherif Girgis, Ryan T. Anderson, Robert P. George, What Is Marriage. Man and Woman: A Defense, New York, London 2012, Ss. 133. Patrick Lee, Robert P. George, Conjugal Union What Marriage Is and Why It Matters, Cambridge 2014, Ss. 143. Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie.
MLA (9th ed.) CitationCzarnecka, Agata. Sherif Girgis, Ryan T. Anderson, Robert P. George, What Is Marriage. Man and Woman: A Defense, New York, London 2012, Ss. 133. Patrick Lee, Robert P. George, Conjugal Union What Marriage Is and Why It Matters, Cambridge 2014, Ss. 143. Uniwersytet Kardynała Stefana Wyszyńskiego w Warszawie.