Life in the twenty-first century, tr,by H.E.Crowcroft and R.F.Wason.

GOUSCHEV (Sergei)Eds.

Life in the twenty-first century, tr,by H.E.Crowcroft and R.F.Wason. - Harmonds-worth Penguin Bks. 1960

Penguin special, ed. by M.Vassiliev and S.Gouschev.S 195.


SCIENTIFIC ESSAYS

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