Le Grand, J., & Robinson, R. (1976). The economics of social problems. Macmillan.
Tohutoru Kātū Chicago (17th ed.)Le Grand, Julian, me Ray Robinson. The Economics of Social Problems. London: Macmillan, 1976.
Tohutoro MLA (9th ed.)Le Grand, Julian, me Ray Robinson. The Economics of Social Problems. Macmillan, 1976.
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