If you mean how to credit the CTB in general, then you could simply state the name of our site and its web address. (At the end of each Tool Box section, there is the tag line, "We encourage the reproduction of this material, but ask that you credit the Community Tool Box: http://ctb.ku.edu/." ) * But if you mean how to credit the CTB in a reference list for a school paper, then it would probably be: "Community Tool Box. [Then, cite chapter number, section number, and title of section in the CTB Table of Contents] Retrieved from [then cite the URL of the section]." This basically follows the style of the APA Publication Manual, which you could consult for further details. An alternative would be to cite the author listed in the section first, followed by section title, chapter number, section number, and "retrieved from" followed by the section URL. We think one of these forms might satisfy your instructor, but ask your instructor which form of citation is preferred. We hope this is helpful. Thanks for using CTB!