APA-viite

Kolakowski, L. (2008). Why is there something rather than nothing: Questions from great philosophers. Penguin Books.

Chicago-tyylinen lähdeviittaus

Kolakowski, Leszek. Why Is There Something Rather than Nothing: Questions from Great Philosophers. London: Penguin Books, 2008.

MLA-viite

Kolakowski, Leszek. Why Is There Something Rather than Nothing: Questions from Great Philosophers. Penguin Books, 2008.

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