Thro, Ellen. Robotics / Ellen Thro. - New ed. - New York : Facts on File, 2003. - xii, 196 p. : ill. ; 24 cm. - Science and technology in focus . ISBN: 0816047014 (hardcover ) LCCN: 2002001233 Subjects--Topical Terms: Robotics--Popular works. LC Class. No.: TJ211.15 / .T457 2003 Dewey Class. No.: 629.8/92