EndNote21

You can change the style as often as you want.

From the EndNote ribbon in Word, click the box called Style: and choose the style you want to use.

If the style you want to use is not in the drop-down box, click "Select Another Style" and choose the style you want in the longer list.

To choose which styles appear in the dropdown list of styles to choose from in both EndNote and Word:

• Click on the Tools menu.
• Mouse over Output Styles and click on Open Style Manager.
• Click in the box next to any style that you want to appear in the dropdown menu and unclick any style that is clicked but that you don't want. These "Favorites" are what appear in dropdown menus.
• Close the Output Style Manager.