Yahooligans! Citation of Sources http://yahooligans.yahoo.com/tg/citation.html   Gr. K-8. Grade level guidelines for citing your sources. Citation Machine http://citationmachine.net/   Gr. 3-12. Select the type of resource you used for your research, input all of the information and this site will create a citation for your source materials. OSLIS http://www.oslis.k12.or.us/citeintro/ctimeout.php Gr. K-12. Automatically creates a citation when you enter in the information for the source materials.