ENDERTON, H. B. (1977). Elements of set theory. Academic Press.
Cita Chicago (17th ed.)ENDERTON, Herbert B. Elements of Set Theory. New York: Academic Press, 1977.
Cita MLA (9th ed.)ENDERTON, Herbert B. Elements of Set Theory. Academic Press, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.