Sock, R. W. (1958). Man's first love: The great commandment. Doubleday.
Lua i Stíl Chicago (17ú heag.)Sock, Ralph W. Man's First Love: The Great Commandment. Doubleday, 1958.
Lua MLA (9ú heag.)Sock, Ralph W. Man's First Love: The Great Commandment. Doubleday, 1958.
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