1. How to cite references in your text 2. How to organize references 3. Abstract 4. Archival documents 5. Audiovisual material 6. Book 7. Conference proceedings, paper, poster session 8. Database 9. Dissertation or thesis 10. Electronic sources 11. Email, mailing list, blog 12. Film 13. Interview 14. Journal article 15. Legal materials 16. Newspaper, magazine, or newsletter article 17. Personal communication 18. Reference work 19. Report 20. Review 21. Software, data set, measurement instrument, apparatus 22. TV or radio 23. Unpublished work