Below is a citation from Academic Search Premier with basic information about the article.

• Title of article — Saving Dying Languages
• Author — W. Wayt Gibbs
• Subject Terms — words and phrases that describe the subject matter - follow the hyperlinks in EBSCO for other articles on the same topic.
• Source (journal) — Scientific American, including journal volume number (287), issue (2), article begins on page 78 (p78).
• Abstract — a short summary of article content. Abstracts enable you to quickly determine whether or not an article will be useful for your research.

Some online periodical indexes provide the full text of an article, including graphics and references. Two full-text formats are often available : HTML (text) and PDF (Portable Document Format). Articles in HTML format look like Web pages.

The next citation is from ScienceDirect, a science and technology database available at most UH campuses. Note the similarity between it and the EBSCO citation above. In EBSCO, search words are bolded and italicized; in ScienceDirect, words are bolded and printed in red:

Articles in PDF format are scanned copies of the original print version of the periodical. PDFs require Adobe Reader software to view them. Adobe Reader is available on all library computers and comes loaded on many new computers. You can download it for free from the Adobe Web site.