Library of Congress Subject Headings are quite useful for discovering primary sources. The following subheadings usually are added to indicate that the material is a primary source: sources, personal narratives, correspondence, diaries, manuscripts, "early works to 1800" or notebooks. Once you've discovered the subject heading for secondary sources, try adding one of the primary source subheadings to see what you find.
Try searching these subject headings in Primo to find anthologies of primary source materials, available here in Collins Library or via SUMMIT request:
Anti-Nazi movement -- History -- Sources
Germany -- History -- 1933-1945 -- Sources
Germany -- Politics and government -- 1918-1933 -- Sources
Germany -- Politics and government -- 1933-1945 -- Sources
Germany -- Social conditions -- 20th century -- Sources
Germany -- Social conditions -- 1933-1945 -- Sources
The Weimar Republic Sourcebook by 
The Nazi Germany Sourcebook by 
The Nazi State and German Society: a brief history with documents by 
Behind Valkyrie: German resistance to Hitler : documents by 
Jewish Responses to Persecution, 1933-1946: a source reader by A digital library of images in the areas of art, architecture, the humanities, and social sciences, with a set of tools to view, present, and manage images.
Artstor is now available in its new home on JSTOR! When you search JSTOR, you will find Artstor’s 2+ million licensed images and more than 1,700 additional primary source collections alongside JSTOR’s vast collection of books, journal articles, and research reports.
