When you find something good in the library catalog, click the "Subjects" or "More Like This" links associated with that particular title to be directed to other useful books and articles.
WWII, World War II, World War Two, World War 1939-1945
For specific countries, type World War 1939-1945 Russia
For memoirs of soldiers from specific countries, type World War 1939-1945 Personal Narratives Russian
For campaigns, type World War 1939-1945 Campaigns Poland
For specific campaigns, type Name of campaign, Battle, Year