| First Published | 1967 |
| Links | Library of Congress, first US edition (1969) · Library of Congress, US edition (1976) |
Editions 2
Add Edition| Title | Publisher | Format | Language | Location | Dates | Impression | |
|---|---|---|---|---|---|---|---|
 | Tiempo Cero | Minotauro | Soft cover | Spanish | Buenos Aires, Argentina | 1971 | |
 | t zero | Harcourt Brace Jovanovich, Inc. | Mass-Market Paperback | English | New York and London | 1976 | A B C D E F G H I J |