Sometimes the author is an organization, like the American Medical Association. If the name is long, you can abbreviate it the first time you cite it. Write the full name first, then the acronym in brackets.
Example: (American Medical Association [AMA] 12). Next time? Just (AMA 14). It’s like giving your friend a nickname after the first introduction—except more professional.
No acronym? Just use the full name every time. It’s a bit like calling your grandma “Grandma” every time instead of “G.” Consistency matters.