The  Excalibur alternative
By: David Weber.
Publisher: Baen Books; Distributed by Simon & Schuster
Published: 2003
Place of publication: Riverdale, NY; New York
Language: eng
Subjects: Life on other planets -- Fiction; Time travel -- Fiction; Great Britain -- History, Military -- 1066-1485 -- Fiction; Rome -- History, Military -- Fiction
Genres: Fiction.