Many universities host PDF copies for their students, such as jasulib.org.kg or IFMO .
If you are looking for more specialized sociological work, Vadim Volkov (Professor at the European University at St. Petersburg) focus on different areas: volkov sotsiologiia kniga skachat
Co-authored with Oleg Kharkhordin, this book explores the "pragmatic turn" in social sciences. A PDF version is often accessible via the European University Press . Many universities host PDF copies for their students,
You can find full versions or excerpts on academic and digital library sites like Gumer.info or LibCat . volkov sotsiologiia kniga skachat