COMPUTER SYSTEMS RESEARCH
Elements of Technical Writing
2005-2006

In a series of three or more terms with a single conjunction, use a comma after each except the last

The comma that comes after the next-to-last term (the term that comes just befor the conjunction) is known as the serial comma.
```
    bacon, eggs, and juice
  
```
Major reference works on English recommend using the serial comma.
```
  The four most abundant elements in the earth's crust are oxygen,
  silicon, aluminum, and iron.
  
```