Time and Again
| Author | Clifford D. Simak |
| Genre | Science Fiction, Novel |
| Original Language | English |
| First published | 1950-10 |
| Notes | Initially was published as series "Time Quarry" and in 1951 was published as "Time and Again". |
Editions 2
Add Edition | Клиффорд Саймак | Hardback | Russian | Moscow | 1991 |
 | Порождения разума | Hardback | Russian | Chelyabinsk | 1993 |
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