When in doubt, cite it!
EasyBib School Edition - Easily create citations and your Works Cited page with the help of EasyBib. EasyBib School Edition also allows you to create notecards and build outlines.
For parenthetical citations of PRINT materials:
"...to the problem of global warming" (Gore 10).
...scientific studies of global warming (Gore 160).
For parenthetical citations of WEB materials:
...atmospheric and economic trends ("Greenhouse Gas Emissions").
For sources with no author, more than one author, etc., please consult Purdue Owl's In-text Citation page.