Norby and Yobo's great adventure
By: by Janet and Isaac Asimov.
Contributors: Asimov, Isaac, 1920-
Publisher: Walker and Company
Published: 1989
Place of publication: New York
Language: eng
Number of pages: 100
Subjects: Robots -- Fiction.; Science fiction.; Space and time -- Fiction.
Description: When Jeff and his robot Norby accompany Admiral Yobo to prehistoric times so the admiral can do family research, the trip turns into a dangerous adventure.