The secret of Zi
By: by Kenneth Bulmer
Contributors: Copyright Paperback Collection (Library of Congress)
Series: Ace double novel books -- D-331; Ace double-novel books -- D-331.
Publisher: Ace Books
Published: 1958
Place of publication: New York
Language: eng
Number of pages: 161
Notes: Bound with (inverted) as issued: Cummings, R. Beyond the vanishing point.  New York, 1958.