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Contents (view Concise Listing)
- 5 • The Mightiest Machine • [Mightiest Machine] • novel by John W. Campbell, Jr. [as by John W. Campbell]
- 5 • The Mightiest Machine • interior artwork by Jack Gaughan
Primary Verifications
| Verifier | Date | Type | Last User Activity Date |
|---|---|---|---|
| Alvonruff | 2006-11-02 05:29:22 | Permanent | 2024-03-11 |
| Bluesman | 2009-09-05 22:24:55 | Permanent | 2018-12-13 |
| Willem H. | 2009-09-07 15:46:36 | Permanent | 2023-12-12 |
| Rtrace | 2011-08-25 20:11:30 | Permanent | 2024-04-24 |
| Don Erikson | 2012-12-30 13:53:39 | Permanent | 2020-03-29 |
| Spacecow | 2020-10-22 18:36:48 | Permanent | 2024-03-27 |
| Philfreund | 2022-03-10 11:45:50 | Permanent | 2024-04-24 |
Secondary Verifications
| Source | Status | Verifier | Date |
|---|---|---|---|
| Bleiler Early Years | N/A | Rtrace | 2019-05-01 21:28:09 |
| Bleiler Supernatural | N/A | Rtrace | 2019-05-01 21:28:09 |
| Bleiler1 (Gernsback) | Verified | Rtrace | 2019-05-01 21:28:09 |
| Bleiler78 | N/A | Bluesman | 2018-01-06 21:28:20 |
| Clute/Grant | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Clute/Nicholls | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Contento1 (anth/coll) | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Currey | N/A | Bluesman | 2009-03-17 13:08:48 |
| Locus1 | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Miller/Contento | N/A | Bluesman | 2009-03-17 13:08:48 |
| OCLC/Worldcat | Verified | Bluesman | 2009-06-28 17:13:03 |
| Reginald1 | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Reginald3 | N/A | Alvonruff | 2006-11-02 05:29:22 |
| Tuck | Verified | Alvonruff | 2006-11-02 05:29:22 |