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by Isaac AsimovMass Market Paperback
ISBN: 978-0-449-21086-4 ISBN-10: 0-449-21086-3 Fawcett · 1985 |
| See also: | ||
| 1983 | Paperback | Casebook of the Black Widowers |
| 1981 | Mass Market Paperback | Casebook of the Black Widowers |
| 1980 | Hardcover | Casebook of the Black Widowers |