http://www.fas.harvard.edu/~wricntr/documents/Assignment.html
http://www.fas.harvard.edu/~wricntr/documents/Topic.html
http://www.sass.uottawa.ca/writing/kit/stage1-assignment.php
http://web.psych.washington.edu/writingcenter/writingguides/pdf/define.pdf
http://www.sdc.uwo.ca/writing/handouts/Answering%20Essay%20Questions.pdf