===البولندية===* MON,Warszawa 1964, 1965* Iskry, Warszawa 1982* Interart, Warszawa 1995* Nowa, Warszawa 1995* ŚwiatKsiążki, Warszawa 1997* Seabury Press, New York, 1973* Ace Books, New York, 1973, 1975* Seabury Press, 1973* Seabury Press, 1976* Penguin Books, 1976* Penguin Books, 1982 (بمشاركة " Tales of Pirx the Pilot وReturn from the Stars ")* معلومات عن الرواية على موقعٍ إلكترونيٍ مهدى إلى ستانيسلو ليم.
"==Editions=====Polish===* MON,Warszawa 1964, 1965* Iskry, Warszawa 1982* Interart, Warszawa 1995* Nowa, Warszawa 1995* Świat Książki, Warszawa 1997===English===* Seabury Press, New York, 1973* Ace Books, New York, 1973, 1975* Seabury Press, 1973* Seabury Press, 1976* Penguin Books, 1976* Penguin Books, 1982 (with "Tales of Pirx the Pilot" and "Return from the Stars")==References==== External links ==*Information about the novel on the website dedicated to Stanislaw Lem