| | 1984. | Fast, Howart. Sylvia: roman. (French, tr. by Lucile du Veyrier) 295 pp, 22 cm, cov. ill., Le Miroir obscur 62 (ISSN 0753-616X). Oswald (53-Mayenne: Impr. Floch). Paris. ISBN: 2-7304-0150-4. |
| | 1990. | Fast, Howart. Sylvia. (French, tr. by Lucile du Veyrier) 295 pp, 17 cm, pbk, cov. ill. col., Rivages noir 85 (ISSN 0764-7786). Rivages (63-Marsat: Impr. la Source d'or). Paris. ISBN: 2-86930-322-X. |
| | 1974. | Sylvia: Roman. (German, tr. by Ulla de Herrera) 233 pp, 18 cm, Exklusiv (33), Bastei-Verlag. Bergisch Gladbach. ISBN: 3-404-05124-6. |
| | 1974. | Sylvia. Sally: 2 Romane. (German, tr. by Ulla de Herrera) 477 pp, 22 cm, Deutscher Buecherbund. Stuttgart; Hamburg; München. ISBN: 3-404-05124-6. |
| | 1983. | Sylvia: Kriminalroman. (German, tr. by Ulla de Herrera) 335 pp, 18 cm, pbk, Knaur-Taschenbuecher (4937). Droemer Knaur. München. ISBN: 3-426-04937-6. |
| | 1967. | (Norwegian, tr. by Per Wolleb‘k) 270 pp, Hjemmenes bokklubb, Oslo. |
| | 1967. | (Swediah, tr. by Gun Årestad) 255 pp, B. Wahlström (Wahlströms elit-romaner. Röda serien 99-2058444-4). Stockholm. |