Each reference number should be enclosed in square brackets on the same line as the text (if possible), before any punctuation, with a space before the bracket.
Examples:
In-Text Citations:
“Your direct quote here [1].”
“Everything is Somebody’s Favorite [14].”
As Miller says in [2], “Some people call me Maurice, ‘Cause I speak of the Pompatus of love.”
There is no need to write “in reference [2].” Just write “in [2].”
If you need to include several of your references in the same sentence you can list them separated by a comma.
Example: Several recent studies [3, 4, 15, 22] have suggested “ . . .”