Masters of the Vortex
Subtitle: (original title: The Vortex Blaster) the seventh novel of the Lensman series
By: (by) E.E. 'Doc' Smith.
Series: Lensman #7
Publisher: Panther
Published: 1973
Place of publication: St Albans
Language: eng
Format: Paperback
Number of pages: 192
Work titles: The Vortex blaster
Notes: Originally published as 'The Vortex Blaster,' Hicksville: Gnome Press, 1960 and as 'Masters of the Vortex,' London: W.H. Allen, 1972.