Cita APA (7th ed.)
PLOTNICK, R., & ET AL. (1999). INEQUALITY AND POVERTY IN THE UNITED STATES: THE TWENTIETH-CENTURY RECORD.
Cita Chicago (17th ed.)
PLOTNICK, R.D, i ET AL. INEQUALITY AND POVERTY IN THE UNITED STATES: THE TWENTIETH-CENTURY RECORD. 1999.
Cita MLA (9th ed.)
PLOTNICK, R.D, i ET AL. INEQUALITY AND POVERTY IN THE UNITED STATES: THE TWENTIETH-CENTURY RECORD. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.