AMA 11th Edition Citation Guide
According to the AMA Manual of Style, 11th edition ("Ch 3: References"):
“References serve 3 primary purposes—documentation, acknowledgement, and directing the reader to additional resources. Authors may cite a reference to support their own arguments or lay the foundation for their theses (documentation); as a credit to the work of other authors (acknowledgment); or direct the reader to more detail or additional resources (directing or linking).”
What's New in AMA 11th Edition
Important changes include
Formatting a Paper Using AMA