"Utopias." . . "Science Social aspects." . . "Utopies." . . "Forecasting." . . . . "Sociale aspecten." . . . . . . . . "The World, the Flesh and the Devil. An enquiry into the future of the three enemies of the rational soul"@en . . "The world, the flesh and the devil : an inquiry into the future of the three enemies of the rational soul" . "The world, the flesh and the devil : an inquiry into the future of the three enemies of the rational soul"@en . . . . . "The world, the flesh and the devil: an inquiry into the future of the three enemies of the rational soul" . "The world, the flesh and the devil : an enquiry into the future of the three enemies of the rational soul" . . . . . . . . "The world, the flesh and the devil; an enquiry into the future of the three enemies of the rational soul"@en . . . "The world, the flesh and the devil : An inquiry into the future of the three enemies of the rational soul : With a new foreword by the author" . "The world, the flesh & the devil an enquiry into the future of the three enemies of the rational soul"@en . . "The world, the flesh and the devil : an inquiry into the future of the three enemies of the rational soul /J.D. Bernal" . "The world, the flesh & the devil: an enquiry into the future of the three enemies of the rational soul" . . . "The world, the flesh & the devil : an enquiry into the future of the three enemies of the rational soul" . . . "The world, the flesh & the devil; an enquiry into the future of the three enemies of the rational soul" . . "The World, the flesh and the devil : an enquiry into the future of the three enemies of the rational soul" . . "The world, the flesh and the Devil" . . . . "Toekomstverwachtingen." . . "Psychologische aspecten." . .