R.U.R. (Rossum's Universal Robots)

The principal trap is internal to Aventinum: a revised version was issued in 1921, and it is a different text from the 1920 first — only the 1920 printing is the first edition. Later Oxford and Doubleday printings, and the many subsequent acting editions and translations, are reprints or 'first thus'. No book-club issue of the 1920 Czech printing was documented in the sources consulted.