It is extremely important to cite ALL references.
- Academic Integrity
- avoid plagiarism (i.e., copying of someone else's work, thoughts, etc.)
- Policy 71 (http://www.adm.uwaterloo.ca/infosec/Policies/policy71.htm)
- http://www.lib.uwaterloo.ca/gradait/ (tutorial for grad students)
- http://www.lib.uwaterloo.ca/ait/ (tutorial for undergrad students)
- Finding references again
There are a variety of citation styles available and you should check with your professor as to which one to use.