We talking HS or College?
I recall some teachers in HS making a big deal of this but they gave us a guideline and it really wasn't hard to apply the details or our own papers/research. In college I don't remember having any guidelines but basically as long as you had the details they'd be happy.
The following is ripped form wikipedia but it follows exactly what I recall.
Books:
* author(s)
* title
* publisher
* date of publication
An entry for a journal or periodical article usually contains:
* author(s)
* article title
* journal title
* volume
* pages
* date of publication
Obviously online sources require a URL (permalink).




