Citing Sources within Your Paper (Using In-Text Numbering)
The CSE - Citation/Sequence in-text citation system is simple: It relies on numbers. Unlike the Name/Year system, no parenthetical information is required. All that's needed is a superscripted number: a raised numeral located at the end of a clause or sentence identifying the content as outside source material.
The superscripted number flags the reader's attention to a correspondingly numbered entry on a References list located at the end of a book or document.