The Fall Of The Towers - Samuel R Delaney Sphere Science Fiction Paperback 1971

Samuel R. Delany - The Fall of the Towers , Sphere 1977

The Fall of the Towers by Samuel R. Delany 1974 UK Sphere PB - Vintage SF

Samuel R Delany. The Jewels Of Aptor. Sphere Science Fiction 1971

The Sands of Mars by Arthur C. Clarke Paperback Book Sphere Science Fiction

Samuel R. Delany The Towers of Toron sci-fi vintage Sphere 1968 paperback

The Jewels of Aptor by Samuel R Delany (Sphere 1971) (22e)