Editions of Auf zwei Planeten

405 pages

English language

Published Aug. 14, 1971 by Southern Illinois University Press.

German language

Published Aug. 14, 1900 by B. Elischer Nachfolger.

German language

Published Aug. 14, 1900 by B. Elischer Nachfolger.

German language

Published Aug. 14, 1900 by B. Elischer Nachfolger.

383 pages

English language

Published Aug. 14, 1971

326 pages

German language

Published Aug. 14, 1948 by Verlag Cassianeum.

350 pages

German language

Published Aug. 14, 1969 by Scheffler.

German language

Published Aug. 14, 1984 by Verlag Das Neue Berlin.