The primary reason to cite your sources is to avoid plagiarism and give proper credit to the original author or creator. Other reasons for citing your sources:
Plagiarism is using another person’s ideas or words without clearly acknowledging or citing the source of that information. You must give credit whenever you use:
For more information on plagiarism, and how to prevent it, see the Avoiding Plagiarism section of Guide to Research at JSRCC
Always check with your instructor on what format specifications to use for a particular class or assignment, especially when citing electronic resources including material found in library databases.