If you were assigned to build an asa sample paper, the first thing to know is the sequence of chapters that have citations. There might be some additional parts, but the main chapters usually stay the same. There are basically five chapters that should be covered in an academic work: objectives, methods, results, conclusion, references. The theory and the proof can be based on your own idea and research, however, in most cases, both take basement in somebody's works, which will set a necessity to cite. The idea cite usage is simple and does not take much efforts, but we live in a modern era where each idea most probably is patented and each word belongs to someone, except it is not yours. All educational institutes are requiring to avoid plagiarism and it can easily be the reason of expelling. Therefore, it is very important to use your references in a correct way. This may be a difficult task, though.