Classes within a degree program may use different style guides, so before you choose a citation style to work with, be sure to check your course syllabus and the assignment instructions.
If you don't see a style guide specified in your classroom, it's always a good idea to check with your instructor.
You can also consult the list below; it lists the style(s) commonly used in each school at AMU and APU. When more than one style is listed, try checking syllabi for courses within your degree program.