No single library owns the complete collection of cross-reference directories covering the state of New Jersey. Local directories are usually held by the largest library in each county. Each library has it's own policy regarding telephone reference service from their cross-reference directories. Most libraries will provide information from these directories over the telephone. Some libraries do not provide telephone reference from these books.
All directories are available to the public for on-site use.
If the person in question is a homeowner, he may be traced by searching through the index volume of the Realty Directories published by First American Real Estate Solutions. You can try locating libraries in your target area on the Web or identify the larger libraries using the American Library Directory . Infospace offers a nation-wide reverse lookup database.