Below are several sample searches for Helmke Library Catalog. You can experiment with adapting these searches for your own topic. Hint: try also the Subject terms at the left hand side of the page or within individual Helmke Library Catalog book records.
Helmke Library Catalog is also an excellent place to look for primary sources. For example, you might add terms like sources or documents to your search. You could also experiment with adding the term translated to your search:
Reference books often include background information, overviews, definitions, and/or suggested sources.