Cita APA (7th ed.)
Morris, D. M. (1979). Measuring the condition of the world's poor: The physical quality of life index. Pergamon.
Cita Chicago (17th ed.)
Morris, David Morris. Measuring the Condition of the World's Poor: The Physical Quality of Life Index. New York: Pergamon, 1979.
Cita MLA (9th ed.)
Morris, David Morris. Measuring the Condition of the World's Poor: The Physical Quality of Life Index. Pergamon, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.