Kolakowski, L. (2008). Why is there something rather than nothing: Questions from great philosophers. Penguin Books.
শিকাগো স্টাইলে সাইটেশনKolakowski, Leszek. Why Is There Something Rather than Nothing: Questions from Great Philosophers. London: Penguin Books, 2008.
এমএলএ সাইটেশনKolakowski, Leszek. Why Is There Something Rather than Nothing: Questions from Great Philosophers. Penguin Books, 2008.
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