Paperback
ISBN: 978-99937-629-3-5
ISBN-10: 99937-629-3-8
Bantam ยท 1992
| See also (possibly by other authors): | ||
| 2011 | Hardcover | The Foundation Trilogy |
| 2010 | Hardcover | Foundation Trilogy (Everyman's Library (Alfred A. Knopf, Inc.)) |
| 2004 | Hardcover | The Foundation Trilogy |
| 1974 | Mass Market Paperback | The Foundation Trilogy |