APA-viite

Malthus, T. R. (1951). Principles of political economy: Considered with a view to their practical application.

Chicago-tyylinen lähdeviittaus

Malthus, T. R. Principles of Political Economy: Considered with a View to Their Practical Application. 1951.

MLA-viite

Malthus, T. R. Principles of Political Economy: Considered with a View to Their Practical Application. 1951.

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