Sock, R. W. (1958). Man's first love: The great commandment. Doubleday.
Cita Chicago (17th ed.)Sock, Ralph W. Man's First Love: The Great Commandment. Doubleday, 1958.
Cita MLA (9th ed.)Sock, Ralph W. Man's First Love: The Great Commandment. Doubleday, 1958.
Atenció: Aquestes cites poden no estar 100% correctes.