Irrepressible Rothbard
Murray Newton Rothbard
R Markdown Cookbook
Xie, Yihui & Christophe Dervieux & Emily Riederer
Racism: A Very Short Introduction
Ali Rattansi
Genetic Programming Theory and Practice II
Una-May O'Reilly & Tina Yu & Rick Riolo & Bill Worzel
Historical Dictionary of Wittgenstein's Philosophy
Duncan Richter
Testing in Scrum
Tilo Linz