Physics

The primary reasons for citing sources when presenting research are:

• to give credit to the authors whose work you have drawn upon, and  
• to allow readers to track down your sources, should they wish to do so. 

​There are many style guides for formatting citations and creating bibliographies. The major styles are:

• MLA Style, from the Modern Language Association;
• APA Style, from the American Psychological Association, and 
• Chicago Style, from the University of Chicago Press