The Link below is to an online edition of the first chapter of the New Economics.
This seminal work, written during the last period of open debate before the consolidation of Stalin’s power, has finally received a digital edition. This unfortunately is not the complete copy.
I have written to Oxford the original publishers of Brian Pearce’ translation to see if I may obtain permission to publish the entire work online in a more accessible format.
Links to sections of additional chapters and discussion pages on sections of the book can be found on this blog by following this link.
Below is a 1966 review published just after the time of release of the English edition http://www.jstor.org/pss/4357174
There are two Wikipedia pages on Preobrazhensky
The link below is to a user page which has much more detail than the primary page.