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Loose Bolts
David Neufeld
出版Wright Group, 2000
ISBN03220194009780322019409
URLhttp://books.google.com.hk/books?id=lOVSPwAACAAJ&hl=&source=gbs_api
註釋Kodik and Filos are on the space station Seeker for a school trip. Suddenly they discover that the station keeps losing bolts and screws.