Hass, E. (1949). The Socialist Labor Party and the internationals. New York: New York Labor News Company.
Cita Chicago (17th ed.)Hass, Eric. The Socialist Labor Party and the Internationals. New York: New York Labor News Company, 1949.
Cita MLA (8th ed.)Hass, Eric. The Socialist Labor Party and the Internationals. New York: New York Labor News Company, 1949.
Atenció: Aquestes cites poden no estar 100% correctes.