For a brief overview and examples of specific reference types, also refer to pages 237-242 of your course textbook - D. Beer and D. McMurrey, A Guide to Writing as an Engineer. Hoboken, NJ: John Wiley & Sons, Inc., 2014.
Each source is referred to in the body of the paper by a full sized number within brackets.
For example:
"...end of the line for my research [13]."
"This theory was first put forward in 1987 [1]."
"Scholtz [2] has argued that..."
"Several recent studies [3], [4], [15], [16] have suggested that...."
"For example, see [7]."
(examples taken from Murdock University's IEEE Style LibGuide)
The references should only include items cited in the paper.
For example:
References
(examples taken from the University of Pittsburg's IEEE Style LibGuide)