Books and Non-periodicals

• Book (Multiple and single authors)
• Article in a reference book
• A Translation

Articles and Periodicals

• Article in a Journal
• Newspaper Article
• Magazine Article
• Review
• Editorial
• TV / Radio Interview
• Personal Interview
• Print Interview

Electronic Sources

• Document from Internet Site
• Entire Site
• Online Book
• Library or personal subscription service

Miscellaneous

• TV / Radio Program
• Film or Video Recording
• Lecture / Speech / Address / Reading