Some basic ones are as follows. The Monthly Catalog is the primary source for locating publications of executive departments, commissions, etc. For older materials not yet in IRIS, use of the Government Publications card catalog will be necessary. Search under the name of the agency which issued the publication, e.g. New Jersey. See stacks 76-77.
Various tools exist to help identify older state publications.
Lucas, Bibliography of Official New Jersey Reports 1905-1945. Bibliography of Official New Jersey Reports 1945-1960. Selected publications, especially ones produced by non-governmental groups in New Jersey, and State of New Jersey publications prior to 1850 should be searched in the Library's Department of Special Collections and Archives on the B Level. These include West's New Jersey Digest, New Jersey Administrative Code, New Jersey Reports, New Jersey Superior Court Reports, Laws of New Jersey, School Law Decisions, the Legislative Index, and other sources. Alexander has a card catalog for government publications which is separate from IRIS and the main card catalog.