I would like to nominate
We by Yevgeny Zamyatin.
This book has been called the grandfather of dystopian fiction, directly influencing George Orwell's
1984, Aldous Huxley's
Brave New World, Ursula Le Guin's
The Dispossessed, Ayn Rand's
Anthem and Kurt Vonnegut's
Player Piano.
Although the Russian work is probably in the public domain, the English translations are not (as far as I know). However, there are 3 different versions that seem commonly available at different prices.
Amazon US (1)
Amazon US (2)
Amazon US (3)
B&N (1)
B&N (2)
B&N (3)
Kobo (1)