There are several ways to insert multiple references in one in-text citation. When formatted, they appear as one multiple citation, sorted as your bibliographic style requires:
Unformatted: {Hall, 1988 #77; Baker, 1988 #16}
Formatted: (Baker, 1988; Hall, 1988)
You can insert up to 250 consecutive in-text citations, although the limit could be lower depending upon the number of fields being formatted with the output style you have chosen.
Note: If one of the citations in a multiple citation is not matched during formatting, the entire citation remains unformatted. Notes cannot be inserted as part of a multiple citation.
To insert multiple citations from Word:
From the Tools menu, go to the EndNote submenu, and then select Insert Citation(s). From the EndNote tab, select Insert Citation, and then select Find Citation.
Enter a generic search term that will find the references you want, and click Find.
Hold down the CommandCtrl key while clicking on the desired references in the list (or hold down the Shift key to select a continuous range of references) in order to highlight the references.
Click Insert.
To insert multiple selected citations from EndNote:
In EndNote, hold down the CommandCtrl key while clicking on the desired references in your library (or hold down the Shift key to select a continuous range of references).
From EndNote’s Tools menu, go to the Cite While You Write submenu, and then select Insert Selected Citation(s). From the EndNote tab, select Insert Citation, and then select Insert Selected.
To insert multiple citations individually:
Another option is to insert citations individually, but immediately next to each other. Cite While You Write merges adjacent citations during formatting. Citations do not merge if any character separates them–including a space or punctuation mark.
Unformatted: {Hall,1988 #77}{Baker, 1988 #16}
Merged when Formatted: (Baker, 1988; Hall, 1988)
Note: You can add citations to an existing in-text citation or change the order of citations within the delimiters with the Edit Citations dialog.
To insert, remove, or edit citations within an existing in-text citation:
Click on the formatted citation.
From Word’s Tools menu, go to the EndNote submenu and select Edit Citation(s) to display the EndNote Edit Manage Citations dialog. From the EndNote tab, click Edit. All of the cited references in the document are listed in the left column of the dialog. An ellipses shows where a citation appears within text. The line below shows the cited reference(s).
Highlight a citation, and then:
Click Remove to delete it.
Click Insert to insert another citation within the same set of delimiters.
Use the arrow buttons to change the order of the citation in a multiple citation. (If a Citation Sort Order is applied by the current output style, changing the order of citations in a multiple citation has no effect.)
You can use the other features on this dialog as described in Customizing Individual Citations.