Yes, I think that in future, you really should start citing your sources, if you really want to get academic credit for all of these sayings, because just a page full of exclamation marks does not really make the grade. Your sources must be formatted and styled in the proper way. I first learned the Turabian, but there are styles, such as the Chicago or the Psychological. Any of these proper styles may work, although you should check with your teacher or school, who may have ideas about that.