Using @LL Search, find only e-books by typing the title or keywords for the book into the search bar.
In the search results, under the "Limit to Library Location" menu in the left column, select "Lesley E-book/Streaming".
This will update your search results so that only e-books will appear therein:
Sherrill Library | Lesley University, Brattle Campus | 89 Brattle Street - Cambridge, MA 02138 | 617-349-8850
John & Carol Moriarty Library | Lesley University, Porter Campus | 1801 Massachusetts Avenue - Cambridge, MA 02140 | 617-349-8070