For examples of common APA citations:
EndNote Web Basic and Zotero are free citation managment tools. They help you collect, manage, cite, and share your research sources. They can create bibliographies in many citation forms.
What is Zotero: Zotero is an open-source reference management software to manage bibliographic data and related research materials.
How do I cite things like interviews, emails, etc.?
When you are using non-standard sources of information it can be more difficult to cite these sources. The official style manual will be the best resource for a complete description of how to cite. Here are a few web sites with information:
Tip: Use a search engine, like Google, and search for "APA citation ERIC document" or "MLA citation interview" to find more examples.