Παραπομπή APA

Morris,Morris David. (1979). Measuring the condition of the world's poor: Physical quality of life index. Pergamon.

Παραπομπή Chicago Style

Morris,Morris David. Measuring the Condition of the World's Poor: Physical Quality of Life Index. New York: Pergamon, 1979.

Παραπομπή MLA

Morris,Morris David. Measuring the Condition of the World's Poor: Physical Quality of Life Index. Pergamon, 1979.