Chicago Style is the preferred bibliographic style for history. You have full access to the most recent and complete version of the Chicago Manual of Style Online through the library website. You can also use the pdf as a quick reference for in-text citations and reference lists for standard resources such as books and articles.
The Craft of Research by 
Zotero is a free, easy-to-use tool to help you collect, organize, cite, and share research. It helps you track all your sources build bibliographies in minutes! It's also collaborative, so if you're working on a project with multiple people you can all save your sources in one place!
Zotero Tutorials
This LibGuide from Ohio University has great video tutorials on using Zotero.
