Follow these steps to insert citations in your PowerPoint slides.
Open the EndNote library that contains the references that you wish to cite.
Start PowerPoint and open the document you are writing.
Select a style from the Output Styles menu.
Position the cursor in the text where you would like to add the citation.
In the text box, enter your search query. This could be an author’s last name, a year, a keyword, or any other combination of terms found in the reference.
Click Find to display a list of matching references.
Select one or more items from the dialog.
Use the Insert button triangle to display a menu:
Insert Button: Click the button to insert the citation and format it as defined by the currently selected output style.
Insert & Display as: Author (Year): Select this option to display both the author name and the year in the formatted citation.
Insert & Exclude Author: Select this option to omit the author name from the formatted citation.
Insert & Exclude Year: Select this option to omit the date from the formatted citation.
The Output Styles menu lists the styles that are currently selected as your "favorites" in the Style Manager. To select a style that is not in the list, click Select Another Style to display an EndNote Styles dialog.
Insert Selected Citation(s)
Open the EndNote library that contains the citation that you wish to insert in your PowerPoint document.
Start PowerPoint and open the document you are writing.
Select a style from the Output Styles menu.
Position the cursor at the location where you would like to add the citations.
From the EndNote tab, select Go to EndNote.
Highlight the desired citation(s) in your EndNote library.
From the EndNote tab, select Insert Selected Citation(s).