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by Robert A. HeinleinPaperback details (USA). details (UK). details (Germany). details (Canada). ISBN: 978-1-4516-3770-0 ISBN-10: 1-4516-3770-5 Baen · 2012 |
| See also: | ||
| 2002 | Mass Market Paperback | Sixth Column |
| 1993 | Mass Market Paperback | Sixth Column |
| 1988 | Mass Market Paperback | Sixth Column |