This translation originally published: New York : Daw Books, 1976. - Translation of: 'Khishchnye veshchi veka'. Moskva : Molodaía gvardiía, 1965.
The final circle of paradise by Arkadiĭ Strugat︠s︡kiĭ. ISBN 0234721456. Published by Dobson in 1979. Publication and catalogue information, links to buy online and reader comments.