The Pace Libraries contain many excellent anthologies of monologues, both classical and modern. To find these in the library, try the BOOKS & MEDIA tab on the library website, select SUBJECT from the dropdown menu, and type in monologues.
You can also try keyword searches under BOOKS & MEDIA or QUICK SEARCH:
You can also use "additional limits" to limit the search to whichever library serves your campus.
If you would like to quickly locate a book of monologues, try browsing the Call Number area PN2080. But keep in mind that not every book of monologues is found there. Do the subject search (described above) to find a more complete list of books the library owns.