When searching for primary sources on your topic, it is best to begin with a search for secondary sources. Look in the bibliographies of the secondary sources to see which primary sources were consulted in the writing of the secondary source.
Search Library Search to find to locate collections of primary sources. Create searches by combining relevant keywords with terms like "sources" or "documents."
"Russian history AND sources"
"Russian history AND documents"
When you find a relevant source, click on the subject heading in Library Search to find more items on the subject.
Here are some example subject headings for primary sources in Russian history:
Russia -- History -- Sources
Soviet Union - History - Revolution, 1917-1921 - Sources
Russia -- History -- Nicholas II, 1894-1917 -- Sources